You believe her. Don't you?

Faye is 39 and single. She's terrified that she may never have the one thing she always wanted: a child of her own.

Then she hears about an online co-parenting app. For men and women who want to have a baby, but don't want to do it alone. When the app matches her with smooth-talking, wealthy Louis, it feels as though the fates have aligned.

But just one year later, Faye's dream has turned into a nightmare. She's on the run from Louis, with baby Jake in tow.

In desperate need of a new place to live, she responds to an advert from an older lady, Rachel, who's renting out a room in her cottage in a remote Norfolk village. It's all Faye can afford - and surely she'll be safe from Louis there?

But is Rachel the benevolent landlady she pretends to be? Or does she have a secret of her own?

HEAR WHAT EVERYONE'S SAYING ABOUT CHARLOTTE DUCKWORTH'S NOVELS:

"Smart, compulsively readable and with an end you won't see coming" Woman & Home

"Surprising and original" Lesley Kara

"A real thrill ride" Heat

"I love Charlotte's dark, messy takes on modern relationships" Claire McGowan

"A taut, chilling read with a killer twist" Sun

"Tense, twisty and deeply unsettling" BP Walter

"Unpredictable, tense and engrossing" Rebecca Fleet

"A writer at the top of her thriller game" Louise Mumford