Synopsis by Hal Erickson
Left alone in the house when Rob (Dick Van Dyke), Ritchie (Larry Mathews), and Jerry Helper (Jerry Paris) go off on a fishing trip, the normally sensible Laura (Mary Tyler Moore) gets an unexpected case of the jitters. It helps matters not at all when a nervous Millie (Ann Morgan Guilbert) shows up, making references to the Hitchcock film Psycho and mistaking tomato juice for blood. Before the night is over, the two terrified ladies become convinced that the house is about to be invaded by (at the very least) an axe murderer -- and wait till you see who the "villain" is! This episode was originally slated to air on March 16, 1966.