A neighbor drops in via a window, asks Mannix to release a man in his office, and then runs off with men in pursuit, and Mannix discovers that the neighbor's business is a front.

Mannix almost loses Peggy when he tells her that he suspects her new boyfriend, Floyd Brown, of being the key man in the theft of forty-five cartons of morphine. Caught between her loyalty to Mannix and her love for Brown, Peggy refuses to listen to Mannix but later places her life in danger when she confronts Brown with the accusation.