‘My name is Darcy, I’m your nurse and I’m here to help you.’ I repeat the words I’ve said so many times. Except this time, I don’t mean it… If you saw me walking down the street, you’d think I was pretty ordinary–I wear the typical crisp, white nursing uniform, my hands are scrubbed clean and you’d have no reason to believe I was anything other than a good citizen. A good nurse. But looks can be deceiving. You shouldn’t trust me–because I don’t even know if I can trust myself.

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 don’t want the perfect marriage. I want revenge… If you had met me a year ago, you wouldn’t have noticed me. A beautiful woman, but a struggling nobody in a tiny apartment, invisible… Meeting Paul changed that. And now here I am in Paris, after a whirlwind courtship and a stunning beach proposal I smile at my handsome husband, my eyes shining in the candlelight, my huge diamond ring sparkling on the starched white tablecloth. Other women look at me in envy. They see a couple completely in love.

I’ll do anything to keep my daughter. But so will my husband… As I look across the courtroom at the man I once shared everything with, I can’t believe it’s come to this. I can see in his eyes: he is here to destroy me. But I can’t let him have our little girl. We swore to keep our divorce civil, for Lola. We agreed to put her first and keep her safe. Then the lawyers got involved, and all our promises went up in smoke.

This is the day my life changes forever. It started so normally. The alarm went at 7am. My husband made bacon and pancakes for me and our seven-year-old daughter, the kitchen full of chatter and laughter. He gave me a quick kiss, told me he loved me, grabbed his wallet, and rushed off to work. Just an ordinary day. Until I get the call from the school. It was Tom’s turn to pick up our daughter. He must be held up for some reason. I find Tom’s phone under our bed. Now I know there’s something seriously wrong. I scroll through his messages. A text sent late last night: I KNOW EVERYTHING.

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.

We were the perfect family once. Shep, my handsome husband. My darling little boy… and our tiny baby girl. The night she died I lost everything. I know without a shadow of a doubt that I would never, ever have hurt her. I was trying to save her. But nobody believed me. So, I can only watch through the rain-streaked window as Shep’s new girlfriend plays mother to my son. Hugs him, holds him. Does he even remember me? Now I am finally out of the hospital, I will make sure everyone knows what really happened. I will get my son back. The doctors might say my nightmares are dangerous…

Amy has terrible taste in men. She's dated guys who cheated on her, beat her, and threatened to kill her, but none of them come close to Mark. At first, Mark is the ideal boyfriend—kind, smart, attractive, and funny. But as their relationship deepens, the charming facade crumbles showing his true colors. He calls her all the time. He gets angry if she doesn't respond to his messages within minutes. He gets irrationally jealous and possessive. By the time Amy decides to leave Mark, it's already too late. He knows too much about her, and he'll stop at nothing to keep her to himself.

I had it all: a fantastic husband, two great kids, an exciting career. And then, at the age of forty-three, I found out I would be dead before my next birthday. My mother also died young. I was seventeen, and she warned me that women would flock to my suddenly single father like stray cats to an overturned milk truck. They did. And one absolutely evil woman practically destroyed his life, mine, and my sister’s. I am not letting that happen to my family. I have three months, and I plan to spend every waking minute searching for the perfect woman to take my place as Alex’s wife.

A group of strangers arrive on a beautiful but remote island, ready for the challenge of a lifetime: to live there for one year, without contact with the outside world. But 12 months later, on the day when the boat is due to return for them, no one arrives. Eight people stepped foot on the island. How many will make it off alive?