5. Psycho (1960)
Psycho originated as a 1959 thriller written by American writer Robert Bloch. It went on to become one of the greatest horrors of all time and among Alfred Hitchcock’s most memorable productions. But, what was the truth behind the creepy Norman Bates?
It’s widely understood that Bloch’s character of Norman Bates was based on Ed Gein, a man who committed a series of gruesome crimes in America and had an unhealthy obsession with his mother. The grim truth about Gein only came to light in 1957, following the suspicious disappearance of Bernice Worden — who was later found gutted inside Gein’s house of horrors.