Someone Behind the Door (1971)

No memory, no name, no mind: This man will act out someone else's insanity and revenge.

Cast

Charles Bronson, Anthony Perkins, Jill Ireland, Henri Garcin, Agathe Natanson

Overview

A neurosurgeon with a cheating wife takes an amnesiac into his home and conditions him to believe that the cheating wife is his own and to take the "appropriate" action.