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.

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…

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.

Returning early from a disastrous date night with my husband, I know something is wrong the moment the wheels crunch the gravel drive of our home. Inside, the TV is on and a half-eaten meal waits on the table. My heart stops when I find our little girl is alone in the house and our babysitter, Sasha, is missing....

I was so nervous about someone new joining our house share. After everything that happened with my parents, my friends are like my family. Our imperfect, but well-loved house is the only place where I can be myself. But when Poppy knocks on our door, blonde hair, wide eyes, and a friendly smile, we all agree she’s a perfect fit. I just wish I could shake the feeling that I’ve seen her before…

My handsome husband Tom. You've given me everything our beautiful son and our perfect new seaside home. I want to trust you, but I know you haven't been honest about why you really wanted to move here. I haven't been honest with you either.

I’ve been married to my kind, loving husband Lachlan for over twenty years. He’s my everything. We have two teenage children, a beautiful home and I feel so lucky to live this perfect life. Until my best friend says something that makes me doubt everything… She whispers it’s strange Lachlan has lived nearby to two unsolved murder cases. First, the murder of the woman in the small, Scottish village where he grew up and more recently the shocking death of a woman who lived round the corner from us. The thought makes my head spin. It’s just a coincidence, surely?

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.

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.

"There’s someone I want you to meet," Belle says, as a man draws up to her side. He’s tall with dark hair and stubble on his square jaw. He’s not exactly smiling, but the corner of his mouth curls upwards as he slides his hand around my daughter’s waist.

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.

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.

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 stare at the messages between my husband Rob and another woman, their plans to run away together bringing tears to my eyes as I stand, trembling, in our luxurious apartment. I thought I had the perfect marriage. As our three beautiful children sleep soundly in the next room, I think about our family holidays, our romantic date nights, and the day Rob proposed to me. In the last few months, I haven’t complained about his late-night meetings or got jealous about his weekends away. I trusted my husband. But now I’m questioning everything.

Ethan gently squeezes my hand as he slides the golden ring onto my finger. But I know we aren’t worthy of happiness. As I look down at my wedding ring, in a blistering flash, I suddenly remember another piece of that pitch-black, rainy night… but I try to focus on Ethan’s gorgeous blue eyes. I know exactly what he’s thinking. We can never tell. All our family, friends and loved ones smile as they watch Ethan and I promise to be together until death us do part. But only we know what that really means…Because we have already killed someone.

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.

My wedding was the perfect whirlwind of a day. The happiest I’d ever been. That was until I discovered my beloved husband, Ryan, tucked away in a compromising summer house clinch with Liza, his best friend’s wife. Reeling with this ultimate betrayal, my world in freefall, with nowhere to turn, I flee my own wedding unable to face anyone, not even my family. I just want to escape this nightmare. With our flight, to our luxury honeymoon leaving in a matter of hours, could ten blissful days of Cretan Island life, minus my cheating husband help me figure out my future?

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.

When you return from a work trip to find your husband dead in the pond, it’s best not to call him a liar and a cheat in front of the cops. Especially when you’ve spent the last few years telling anyone who’ll listen that you sometimes fantasize about killing him. It makes you look kind of, well, guilty.

It’s the day I’ve been dreaming about my whole life. As I glide down the flower-strewn aisle overlooking the Greek orange groves, in my pearl-encrusted ivory gown, I finally see my fiancé Nik. We look like the perfect couple, but not all fairy tales have happy endings....

"There’s someone I want you to meet," Belle says, as a man draws up to her side. He’s tall with dark hair and stubble on his square jaw. He’s not exactly smiling, but the corner of his mouth curls upwards as he slides his hand around my daughter’s waist.

In the wake of my darling husband’s death, I am so lucky to have my three beautiful, grown-up daughters by my side at our holiday home in Scotland. We need some time together to recover from the shock. But I also need to set some things straight about their beloved father....

I was so nervous about someone new joining our house share. After everything that happened with my parents, my friends are like my family. Our imperfect, but well-loved house is the only place where I can be myself. But when Poppy knocks on our door, blonde hair, wide eyes, and a friendly smile, we all agree she’s a perfect fit. I just wish I could shake the feeling that I’ve seen her before…

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…

Everything my husband and I have always dreamt of has finally come true. Our new home with its open-plan kitchen and marble countertops couldn’t be further from the small, damp flat where we lived only months ago. I’d hoped this would be our fresh start, an escape from my past, but the handwritten note that arrived on our doorstep makes my blood run cold – you don’t deserve this 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.

I push open the door to the beautiful French villa and my clever, handsome husband and adorable wide-eyed children follow me inside, taking in the breath-taking view. This should be a blissful summer break, filled with sun, swimming and relaxation but the truth is very different. Because my husband has just revealed the real reason we’re here. When our friends staying at the sprawling villa greet us on the sun-soaked terrace, I smile brightly and attempt to calm my nerves.

Since Alice’s fiancé walked out on her, she never thought she’d meet "The One". But all that changes when she meets Dominic. Handsome, charming, and kind, Alice can’t believe her luck when he proposes a few months later and moves into her West London home. Three years on, Alice’s catering business is thriving and she is married to a man she adores. So when she sees that little blue line, it should be the happiest moment of her life: they’re going to have a baby. But then the police knock on her door and Alice’s whole world is turned upside down...Dominic is dead.

The day I was told I’d never be able to have a child, my world came crashing down. My husband says he still loves me, but I lie awake at night, wishing we could have a family. One morning, my husband’s side of the bed is cold and empty. I hear a noise and head downstairs. In the middle of the rug in my living room is a wooden drawer. Swaddled inside, with perfect rosy cheeks and beautiful round blue eyes, a baby gazes up at me.

Everything in Lorna’s life runs like clockwork, from her six a.m. run to the strict 60 minute counselling sessions she gives. It’s the only way she can deal with the terrible secret she carries. When a new client arrives for his first appointment, Lorna feels her perfect life unravel in a matter of seconds. It’s Andrew, the man she’s spent the last year desperately trying to forget. It seems he can’t forget her either....