Terror invades an upper-class New York community as 17-year old Christie Cromwell cleverly uncovers her stepfather's horrifying plot to murder her wealthy mother. She's on to him, yet no one will believe her because she's just a kid: smart, imaginative, maybe she's just taken a crazy idea to the limit. Suspense builds when a series of shocking events confirms her worst fears. Alone, afraid and helpless, terrified Christie and her mother are held prisoner in their own home at the mercy of ruthless killers.