David Logan lives at home with his mother and he's still upset that his father left them many years before. He is haunted by an event when he was twelve years old and he came home to find his father with a blue-eyed blond. He tells his mother he has an appointment at 11:00 so he skips dinner and heads to a bar. There he meets a girl and repeats several times that something big is going to happen at 11:00. He gets into a fight with a sailor in the bar and tells him the same and then again with a patron in an Irish pub, now saying someone is going to die at the prescribed hour. When the 11 o'clock news come on the air, you learn the full story.

Just at a point when he has everything to live for, wealthy Dave Rainey is stricken down with polio. Now confined to an iron lung, Rainey obsesses over the possibility that his wife, Cindy, plans to kill him. When Cindy falls for a handsome stranger named Arnold Barrett, it would appear that Rainey's fears are about to be realized -- but as we all know, appearances on Alfred Hitchcock Presents have a habit of being deceiving.