She knows everything about you… but can you trust her? I walk in to my interview with Ava Green and carefully hand over my application. It’s all made up, of course, but Ava doesn’t have to know that. There is so much worry in her blue eyes. Her phone pings with constant messages and a small stain marks her crisp shirt. Breakfast with her two little girls before heading out to this high-flying job every morning can’t be easy. Ava needs me, I think. More than anything.

Eve wanted nothing more than to be a mother. She and her husband, Aidan, planned to have a family, but with each devastating miscarriage her hopes dwindled. When she eventually gave birth to her daughter, Kayla, it should have been the happiest time of her life. Instead, it was a waking nightmare for Eve and one she was desperate to escape. Now, Eve has left all that behind. She pretends that she never had a child and keeps her secrets close. But someone knows the truth. They know that Eve told a lie, and the clock is ticking before her shocking decision is revealed.

How well do you really know your own family? The wife: Eve is desperate for her life to be perfect. Living in a beautiful house, with gorgeous views of the countryside, is all she’s ever wanted. And she’ll do whatever it takes to hold onto her dream life. The son: Joe is a model student; he never puts a foot wrong. He knows his mother wouldn’t tolerate it. Until the night of his sixteenth birthday party, when things go horribly wrong and someone in the house is left fighting for their life. As the blue flashing lights of the police and ambulance arrive, all eyes are on the Griffiths family.

I was just a little girl, fast asleep in my stroller, the day my mother was killed. I don’t remember anything about the sunny day that turned so dark. She’d be so happy for me now, 20 years later, with my dream job as a photographer, and I’m sure she’d love my new boyfriend, Gabriel. But all my happiness vanishes in a heartbeat when the man from our past walks toward me, his eyes on me for just a fraction too long.

I used to enjoy my job. I was good at it and felt fulfilled. I also used to enjoy spending time with the people I worked with. They say you spend more time with your work colleagues than you do with your family members, but that was fine by me because I made two very good friends at the office. I also allowed myself to get a little too close to my boss, but I soon realized that was a mistake. Unfortunately, it was too late by then, and as my personal and professional lives quickly blurred into one, that was when everything changed.

ME: Staring down at the sweet baby in my arms, I feel panic instead of love. Because this isn’t the child I gave birth to. My husband whispers to the midwife. They all think I’m going crazy. But the tiny boy in my arms is crying again. I’m certain: he knows I’m not his mummy. And I’ll do whatever it takes to get my son back.

Standing in my bathroom, the luxurious marble tiles cool under my feet, I stare at the test in my trembling hand. The second line is unmistakable: I’m pregnant. This is all my husband Theo and I have ever wanted, but I didn’t think it was possible. I should be excited, but all I can think about is telling my stepdaughter. Because Ellie’s always hated me, ever since she realised it was no longer just her and Theo. Now she’s seventeen, beautiful and smart–smart enough to see through me. And if Ellie decided to uncover my secrets, it wouldn’t be just my marriage at stake… it would be my life.

Alex and I haven’t been dating for very long when I go to his place for the first time. Feeling self-conscious as I notice a thread coming loose on my dress, he pours me a glass of wine and I take in the pristine room and expensive furnishings. Everything here is perfect, too perfect. Where are the personal touches, the souvenirs from his life? Where are the photos of his friends and family? ‘You can trust me,’ Alex says as he hands me the wine, and my heart beats wildly in my chest. I really want this to work, especially after the disaster of my last relationship.

Fiona Fisher lives a quiet and contented existence. A former nurse who married Jason, the doctor of her dreams, she is now a mother to his two daughters and living in the sort of cosy village home she’d always wished for.

Be careful what you wish for. On the surface, Callie Harwell has it all. Newly married to James, she finally gets the family she has longed for and becomes a mother to his two sons. So why is she arrested for murder? Things are not as Callie hoped they would be and she struggles to be accepted as part of James' family, and to keep hidden the secrets that could destroy her future. As her life spirals out of control, setting in motion a chain of events with devastating consequences, Callie is forced to question how well we ever really know ourselves.

Our new home was meant to be a chance for us to start again; to make new friends and forget the past. And as I look around the barbeque we’ve thrown for our neighbors, I dare to dream that things will be all right. I watch my husband joking as he flips burgers and my daughter turning cartwheels on our sun-bleached lawn. And then my gaze falls on my son, Jacob, and his new girlfriend, Rose, in her light blue jeans and her green crop top. There is a worried expression clouding her beautiful eyes.... The next day I get a call from Rose’s mother that chills me to the bone.

I thought my first husband died ten years ago. But now he’s back... Opening the front door, I’m stunned to see a familiar face. I never thought I’d see Freddie’s deep brown eyes and crooked smile again. But how is this possible when he died ten years ago…? It took years to move on, but finally my life is almost perfect.

Three years ago, nurse Zoe's son Ethan was found drowned in a muddy river by their home, along with his best friend, Josh. With no witnesses, their deaths were ruled a tragic accident. Heartbroken, Zoe and her family move away from her home. They’re just beginning to get back to some kind of normality when, out of the blue, Zoe receives an anonymous email: "You need to find out the truth about what happened to your son. Don’t let this rest. Don’t believe the lie." Shaken, Zoe starts an obsessive hunt for the truth.

After my first husband died, I thought my heart was completely broken, and that I’d never feel happy again. Until I met Theo. He’s a doctor. A man who seems good and caring and kind. Soon after we start dating, he says he wants to marry me. And even though his grown-up children are less sure about me, to everyone else it’s the second chance for love and happiness I deserve. But the truth is maybe his children are right to be suspicious. Because I know something about Theo. That he was there in the operating theatre the day my first husband died. And I think it was his fault.

Wife: I couldn’t be prouder of my charming husband and quiet and kind son. I’ve poured everything into my little family, so I choose to ignore my husband’s late-night phone calls and wandering eye. I won’t let anything ruin my perfect life…

The night that throws a wrecking ball into Abby’s life starts out perfectly at first. There’s still a hint of summer sun in the purple-streaked sky. Abby and her best friend, Sienna, look on fondly as their two husbands laugh under the garden gazebo. None of them know it’s the last time they will be together again. What starts out as just a little fun has devastating consequences for the couples. Alone with Sienna’s husband, Greg, Abby finds him unexpectedly charming. Caught up in the moment, she reveals a secret she swore never to tell.

Our new home was meant to be a chance for us to start again; to make new friends and forget the past. And as I look around the barbeque we’ve thrown for our neighbors, I dare to dream that things will be all right. I watch my husband joking as he flips burgers and my daughter turning cartwheels on our sun-bleached lawn. And then my gaze falls on my son, Jacob, and his new girlfriend, Rose, in her light blue jeans and her green crop top. There is a worried expression clouding her beautiful eyes.... The next day I get a call from Rose’s mother that chills me to the bone.

I was just a little girl, fast asleep in my stroller, the day my mother was killed. I don’t remember anything about the sunny day that turned so dark. She’d be so happy for me now, 20 years later, with my dream job as a photographer, and I’m sure she’d love my new boyfriend, Gabriel. But all my happiness vanishes in a heartbeat when the man from our past walks toward me, his eyes on me for just a fraction too long.

Tara Logan adores her perfect little family: husband, Noah, and two children, teenager Rosie and 11-year-old Spencer. But her happiness is shattered when she wakes in her neighbour Lee Jacobs' bed, with no memory of how she got there or what happened between them. And worse - he has been stabbed to death. Convinced she didn't kill Lee, Tara flees home and stays silent, holding her breath as the investigation grips the neighbourhood.

After meeting Jamie’s smiling blue eyes across a crowded bar, I tell myself, that after my recent divorce, this is the bit of fun that I need. It is the biggest mistake I’ve ever made. Because when I return to his flat the next day, excited to see him again, I am horrified to discover he has been murdered. I know I should tell the police, but I can’t be the person to call them. With my past they will just assume the worst…

She knows everything about you… but can you trust her? I walk in to my interview with Ava Green and carefully hand over my application. It’s all made up, of course, but Ava doesn’t have to know that. There is so much worry in her blue eyes. Her phone pings with constant messages and a small stain marks her crisp shirt. Breakfast with her two little girls before heading out to this high-flying job every morning can’t be easy. Ava needs me, I think. More than anything.

Be careful what you wish for. On the surface, Callie Harwell has it all. Newly married to James, she finally gets the family she has longed for and becomes a mother to his two sons. So why is she arrested for murder? Things are not as Callie hoped they would be and she struggles to be accepted as part of James' family, and to keep hidden the secrets that could destroy her future. As her life spirals out of control, setting in motion a chain of events with devastating consequences, Callie is forced to question how well we ever really know ourselves.

Three years ago, nurse Zoe's son Ethan was found drowned in a muddy river by their home, along with his best friend, Josh. With no witnesses, their deaths were ruled a tragic accident. Heartbroken, Zoe and her family move away from her home. They’re just beginning to get back to some kind of normality when, out of the blue, Zoe receives an anonymous email: "You need to find out the truth about what happened to your son. Don’t let this rest. Don’t believe the lie." Shaken, Zoe starts an obsessive hunt for the truth.

Eighteen years ago Simone Porter's six-month-old daughter, Helena, was abducted. Simone and husband Matt have slowly rebuilt their shattered lives, but the pain at losing their child has never left them. Then a young woman, Grace, appears out of the blue and tells Simone she has information about her stolen baby. But just who is Grace - and can Simone trust her? When Grace herself disappears, Simone becomes embroiled in a desperate search for her baby and the woman who has vital clues about her whereabouts.

How well do you really know your own family? The wife: Eve is desperate for her life to be perfect. Living in a beautiful house, with gorgeous views of the countryside, is all she’s ever wanted. And she’ll do whatever it takes to hold onto her dream life. The son: Joe is a model student; he never puts a foot wrong. He knows his mother wouldn’t tolerate it. Until the night of his sixteenth birthday party, when things go horribly wrong and someone in the house is left fighting for their life. As the blue flashing lights of the police and ambulance arrive, all eyes are on the Griffiths family.

When Tuppence was born, I thought I was complete. Even when my marriage to Leon began to falter, at least I had my baby girl to look after. Adults have problems all the time, but children have a way of making them seem so insignificant. But then Tuppence goes missing and I realize how my life has been teetering on the brink for so long. Now it's just me and my husband again, the two of us and all our problems, and we're forced to work together as a team to get our beloved daughter back.

I stare at the photo of my beautiful daughter. Her hair is shining and her face is lit up with a smile. The man with her looks so happy too. But my mother’s instinct is screaming. I know something is terribly, terribly wrong. And I know what I have to do… I wish I could hold her tight. See if she still wears the same perfume she always wore. But my daughter blames me for her father’s death. She won’t even talk to me… I just know she isn’t really safe with her boyfriend, Garth. I will keep my distance and I will just watch her. For now.

Her chest tightens, her heart speeding up. The kitchen is chaos. She steps on something hard, and looks down. Toy dinosaurs are scattered everywhere. But her son is nowhere–her baby boy is gone.

Elizabeth is Joe’s foster mother, but she loves him like her own. The five-year-old, who adores superheroes and watching the birds outside, is the child she has dreamed of. As she looks into the garden, where he was playing just moments ago, her heart feels like it has been ripped from her chest. She was meant to save Joe from his birth mother who almost harmed his chances at life. The woman who has been trying to desperately get him back. She was meant to protect Joe from her husband. The man who, right now, lies to the police, saying he was making breakfast when Joe disappeared.

Standing in my bathroom, the luxurious marble tiles cool under my feet, I stare at the test in my trembling hand. The second line is unmistakable: I’m pregnant. This is all my husband Theo and I have ever wanted, but I didn’t think it was possible. I should be excited, but all I can think about is telling my stepdaughter. Because Ellie’s always hated me, ever since she realised it was no longer just her and Theo. Now she’s seventeen, beautiful and smart–smart enough to see through me. And if Ellie decided to uncover my secrets, it wouldn’t be just my marriage at stake… it would be my life.