One of the greatest horror sequels happens to be 1983's Psycho II starring Anthony Perkins. What many people probably don't know is that there's another Psycho II! Yep, Robert Bloch (the author of the original Psycho novel) wrote a sequel that was released in 1982. He had finished writing the book before Universal Studios had finished the screenplay for their sequel film. The sequels have two completely different plots. Robert Bloch's sequel is more of a satire about Hollywood gory horror films. The 1983 film involved Norman Bates being released from a mental institution and reenters society. Universals Studios didn't like Robert Bloch's sequel and desperately attempted to stop him from publishing it. They feared it would hurt their movie. Bloch went ahead with his novel and Universal Studios refused to invite him to any Psycho II screenings.
Robert Bloch's Psycho II is set 20 years after the original novel and during this time Norman Bates has been in a mental hospital receiving treatment for his multiple personalities, which seems to have finally been cured. However, after two visiting nuns arrive at the hospital, Norman snaps. He kills one of the nuns, puts on her hammock, and escapes in a van. The authorities finds the charred remains of the van along with two bodies - one female and one male, which the latter being believed to be Norman Bates.
Later, somebody goes on a killing spree, starting with Sam and Lilia Loomis in Fairvale. Then the killer heads to Hollywood, where a movie studio is making a movie about Norman Bates.
Has "Mother" returned to protect Norman again?