Mia and Finn are busy turning a derelict house into their dream home when Mia unexpectedly falls pregnant. But just when they think the house is ready, Mia discovers a shocking message scored into a skirting board: I WILL SAVE THEM FROM THE ATTIC. Following the clue up into the eaves, the couple make a gruesome discovery: their home was once a real-life murder house, with the evidence still concealed within the four walls.

All she wanted was the truth, but she'll wish she never found out. When Catherine wakes up alone one morning, she thinks her husband has gone for a run before work. But Simon never makes it to the office. His running shoes are by the front door. Nothing is missing - except him.

Nina can never forgive Maggie for what she did. And she can never let her leave. They say every house has its secrets, and the house that Maggie and Nina have shared for so long is no different. Except that these secrets are not buried in the past. Every other night, Maggie and Nina have dinner together. When they are finished, Nina helps Maggie back to her room in the attic, and into the heavy chain that keeps her there.

Eve has a good life. She wakes up each day, kisses her husband Nate, and heads off to teach math at the local high school. All is as it should be. Except… Last year, Caseham High was rocked by a scandal involving a student-teacher affair, with one student, Addie, at its center. But Eve knows there is far more to these ugly rumors than meets the eye. Addie can’t be trusted. She lies. She hurts people. She destroys lives. At least, that’s what everyone says. But nobody knows the real Addie. Nobody knows the secrets that could destroy her. And Addie will do anything to keep it quiet…

With two young children, Mary hasn’t slept in what feels like years. For his part, Tim never feels safe enough to sleep. And so one hot, exhausting night, the two strangers meet while seeking solace in a nearby park. There, they witness something horrific: a violent attack in the window of a neighbouring house. Bonded by what they’ve seen, Tim and Mary are desperate to find answers. And when they see news reports of a missing woman who was last seen walking alone not far from them, the pair are convinced it’s her they saw being attacked—no matter what the police say.