Fifteen years after helping to send rapist Frank Ventresca to prison, guidance counsellor Samantha Quinlan has a nearly perfect a job she loves, a boyfriend she loves, and a son she loves even more. But when Frank turns up again -- still obsessing, still delusional, and still dangerous -- Samantha’s nightmare begins all over again.Wherever she goes, Frank lurks, and the life Samantha has struggled to build comes dangerously close to unravelling. She is implicated in the dismissal of a colleague. One of her beloved students dies. Samantha discovers her son might not be the perfect child she has been so proud of. And a romantic getaway with her fiancé, a prominent Boston surgeon, ends in violence. As Samantha struggles to cope with each new crisis, she begins to Are the events connected?As the knot of menace tightens around her, Samantha realizes that madness often wears a disguise.