She knows your secret. But do you know hers? A gripping psychological thriller where the line between friends and enemies becomes dangerously blurred...Mary never meant to tell Willa her secret. But after leaving her husband and father of her young son, meeting Willa feels like fate. Finally, she has someone on her side. Until Willa disappears. Mary is heartbroken and confused. Why would her friend abandon her? But when she sees Willa months later, it's clear she never knew her at all. Because Willa's in a new town, with a new name, and a brand-new family. Mary knows she can't trust Willa. But Willa knows her very worst secret. And to keep her secret safe, Mary will have to keep her friend close - or risk losing everything . . .