Psycho IV: The Beginning (1990)

Psycho IV: The Beginning is a 1990 American made-for-television horror film directed by Mick Garris that serves as both the third sequel and a prequel to Alfred Hitchcock's Psycho, as it includes both events after Psycho III while focusing on flashbacks of events that took place prior to the original film. This is the fourth and final film in the original Psycho series.