His best friend. Her worst enemy.
Amber Stillman has it all. Handsome husband. Two children. Nice house in a quiet, middle-class suburb. A perfect life. Until her teenage son makes a new best friend and undergoes a personality transplant.
Amber's marriage begins to fray. Her younger daughter acts out. Her son becomes unrecognizable. And the common denominator? The dangerous interloper who's insinuated himself into her son's life. With her nuclear family imploding and everyone suddenly keeping secrets, Amber knows one thing. Her son's best friend must go. Permanently.