The body of Lefty Riccardi dies in the electric chair, but his mind has been transferred to broker John Billings. Two detectives solve this mystery.; A "Mr. Average American" turns knife murderer at night and seeks the professional help of a psychiatrist.; Tony and Chopper enter their quiet hideout in the mountains, but get attacked by a mountain lion.; Gangster Blenheim hides at the house of a friend. A boy living there gives him nothing but trouble.; Gustav Perrin steals a miniature atom bomb, but loses it to a suicidal stranger who jumps off a building with it.; The surviving acrobat falls as well and lands on the unfaithful wife.