You let her into your home. Now she won’t let you leave.

Sophie Carter needs a fresh start. After a painful break-up and struggling to stay afloat, taking in a flatmate seems like the perfect solution, and Emilia Taylor seems like the perfect fit.

Soon they become friends. But something isn’t right.

Small things start to feel… off. A missing scarf. A door left open that Sophie swore she locked. The unsettling feeling of being watched. And as Sophie’s world begins to unravel, she starts to wonder if letting Emilia in was the worst mistake she’s ever made.

Because Emilia doesn’t just want to be Sophie’s friend. She wants so much more.

And if she can’t have her… no one can…

Fans of Freida McFadden and Alice Feeney will devour this fast-paced, unsettling thriller, where obsession turns deadly, and escape might not be an option.