Dementia 13

Dementia 13 is a 1963 independently made black-and-white horror-thriller film, directed by Francis Ford Coppola and produced by Roger Corman. It was Coppola's feature film directorial debut. The film stars William Campbell and Luana Anders with Bart Patton, Mary Mitchell, and Patrick Magee.

A scheming widow hatches a bold plan to get her hands on her husband’s inheritance, unaware that she is targeted by an axe-wielding murderer who lurks in the family's estate.