Psycho House (sometimes referred to as Psycho House: Psycho III) is a 1990 horror novel by American writer Robert Bloch. It is a sequel to the 1959 novel Psycho and the 1982 novel Psycho II.
The novel is not related to the 1986 film Psycho III or the 1990 film '.
Ten years after Norman Bates' death, a local entrepreneur has rebuilt the Bates Motel in Fairvale as a tourist attraction. Amy Haines travels to the infamous "Psycho House" to write a book about Bates when mysterious murders begin to occur. Haines faces resistance from the community when she enlists the help of a group to investigate the murders.