Without Warning!

A government agent investigates the use of illegal amphetamines among long-haul truck drivers.

Story of women who marry GIs just so they can receive the soldiers' pay and their life insurance if they are killed in action.

An attorney engaged to an actress gains acquittal for a wealthy playboy accused of manslaughter. The actress, anxious to play the lead in a production backed by the playboy's uncle, neglects her fiancé in favor of the playboy. The enraged attorney kills the playboy's uncle and makes plans to kill the playboy.

Janet Spencer (Linda Stirling) has a blow-out and walks into the Armstrong Chemical Company to ask John Armstrong (Tristram Coffin for help, thus arousing the jealousy of his wife Rita (Barbara Wooddell. Her own car now missing, Janet drives away in Rita's car and almost collides with a second car. When she stops she is accused of hitting and killing a man--Ralph Doane, Armstrong's senior partner. Two men offer to take Doane's body to a hospital. Janet meets Steve Morgan (William Henry), a private detective who offers to help her. Steve goes to Sam Priestly (Kenne Duncan), the insurance man for the Doane-Armstrong company. He informs Steve the money has already been pair to Armstrong and throws him out. He visits Rita, who offers him cash if he can find her husband's girlfriend, and he trails Armstrong to the apartment of Lola Carson (Virginia Christine) and later learns that Rita has been arrested for the murder of her husband. At night, Steve and Janet drive to the Doane-Armstrong plant and find the solutions to the various mysteries.

In an effort to improve the circulation of his notorious scandal magazine, unscrupulous owner, editor and publisher H. R. Manley spares nobody.

Two murders are committed and a $50,000 Chinese Mandarin stamp is stolen, tossed around and eventually recovered as an aggregation of costly-stamp counterfeiters are uncovered through the mastermind investigation by Ellery Queen.