A third murder in the last two weeks is reported over the television, and police confess they have a psychotic madman on the loose, preying only on live-in nurses. One dark stormy night, Nurse Stella Crosson (Dana Wynter) and Nurse Betty Ames (T.C. Jones) are tending to their employer, a man with a heart condition who resides in a creepy old mansion just outside of town and needs constant attention. A phone call from the murderer informs the women that he knows they're alone, and intends to pay them a visit before the night is over. Checking to make sure all the doors and windows are locked, Stella finds that she overlooked a basement window, a mistake that might prove all too costly.
Did You Know?
Besides not being given the last few pages of the script until the final shoot, no one but a limited crew and the two actors involved in the final scene(s) were allowed on the set. See more
In a brief exterior camera shot outside the Psycho house, we see Stella looking out into the stormy night through a ground-floor window. The window pane she looks through contains TWO sections divided in half horizontally. When the scene shifts indoors, the same window pane suddenly contains FOUR sections divided horizontally and vertically. See more