A husband struggles in the aftermath of an attack that left his wife in a catatonic state after he receives a videotape recording of the assault in his mailbox. Soon he begins to feel strange, like someone's watching him, invading his mind and his home. When he receives another mysterious tape in the mail, he knows the same assailant isn't finished with his family, or him. Fearing for his young daughter's safety, he prepares to kill the assailant, but the assailant's means of entering the house may be more complicated than anyone could imagine...