When we move into the exclusive Westford Park housing estate, we feel safe at last. More like a country club, it has everything we might need – beautiful houses with big gardens, a pool, a boating lake, extensive grounds. It’s also got 24/7 security. Our new neighbours are lovely too. We start to make friendships that feel like they could last a lifetime. It feels like nothing could possibly go wrong here. It’s like our secrets haven’t followed us here. Or that’s what we think at first…

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.

Should I believe the woman who ruined my life, or protect the husband who’s already betrayed me? I walk past rows of immaculate white roses into the Kane family’s picture-perfect home, thinking that I’d never guess what’s happened behind closed doors. The woman standing with my colleagues in handcuffs looks so innocent in her blue, silk dress. But they say she’s killed her husband. When I see her face, I recognise her immediately. She’s my own husband Bradley’s mistress… She was found beside the body with blood on her hands.

On the last day of school, my friends and I gather on the beach to celebrate the long summer ahead. Sipping cans of warm cider and watching campfire embers dance into the inky sky, I don’t think I’ve ever been happier. Until a scream pierces the night. The next morning, we find shy newcomer Pippa on the beach, sandflies gathering on her lifeless body…

Natalie is single and carefree, fulfilled by her journalism career, but still she can’t help but wonder what happened to Owen, the one that got away. When she learns that he’s disappeared—and left behind a note that mentions her name—she finds herself pulled back into his life.

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.

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?

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…

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.

Young married couple Heidi and Freddie just moved to Huntington Grove. All the neighbours see they are friendly and polite but why is one door in their house always locked? Across the street, Willow tries not to argue with her teenage daughter – even as her marriage is falling apart. And where does her husband really go each night, leaving the bed beside her cold?

When Julie Buckley, a successful mystery writer, suspects her husband of cheating, she turns to her best friend, Darby, for advice. When Darby suggests couples therapy, Julie and Oliver find themselves discussing Oliver’s betrayal with their new therapist, Liza. Liza is competent and reassuring, and her advice and Oliver’s openness to change seem to be helping the couple rebuild their relationship.

Two years ago, my whole world was ripped apart when my husband and best friend were killed in a car accident in Norfolk. Since then, I've struggled to come to terms with my overwhelming grief and to understand why they were together in Charlie’s car that fateful night. Following a friend’s advice, I sign up to a reputable dating site, IntoYou. She tells me it’s the perfect way to meet someone, and when I quickly get a match, I believe she is right. I am surprised how easy this is. But it seems I have a lot to learn.

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.

Four years ago, beautiful yet troubled Allie Andersen vanished without a trace. The twenty-one-year-old daughter of an acclaimed actress, her disappearance captivated the media, left her family distraught, and became a fixation for online theorists, who implicated everybody Allie knew and loved. Everyone, including her devoted stepsister, Natasha. Now, Natasha is finally trying to move on.

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?