Taylor Halstead, psychologist and successful radio personality, is terrified that she'll never be safe again. Coming on the heels of a series of tragic and terrible events, the e-mail sends chills racing up her spine. Her safe, secure world has already been violated by her cousin Stephanie's boyfriend, Gordon Mallory, in her own apartment. Only the door buzzer and Stephanie's intervening voice rescue her, but not before Gordon promises to return. Soon after, he is killed along with Stephanie in an inexplicable explosion aboard his yacht. Or is he?