'THRILLING . . . SHIFTS LIKE QUICKSAND UNDER YOUR FEET' Erin Kelly, author of HE SAID/SHE SAID 'SLICK AND PACEY' Renee Knight, author of DISCLAIMER 'CHILLINGLY CLAUSTROPHOBIC ... BRILLIANT.' Karen Hamilton, author of THE PERFECT GIRLFRIEND A new standalone psychological thriller from Colette McBeth, whose dark, twisty and hugely compelling novels are beloved of writers like Paula Hawkins, Clare Mackintosh and Marian Keyes. You could say it started with vanity. We believed we were special. But the truth is we were simply vulnerable. Months after landing their dream job, five...