Julie Messinger is an intense woman who hides her wild emotions and desires under her conventional facade. Her husband Richard checks into the hospital for a simple mole removal that goes seriously wrong.
Boxer Tommy Nelson is accused of killing his manager. While detectives Bud and Lou investigate they come across an invisibility formula with which Tommy injects himself rather than face the police. This sparks an idea for trapping gangster Morgan by having Lou fight champ Rocky Hanlon, with Tommy's invisible help.
Mrs. Elizabeth Bright Murdock hires Marlowe to find an old rare coin, the Brasher Doubloon, that belonged in her deceased husband's collection. Marlowe begins investigating, but quickly finds himself entangled in a series of unexplained murders.
George Taylor returns from WWII with amnesia. Back home in Los Angeles, he tries to track down his old identity, stumbling into a 3-year old murder case and a hunt for a missing $2 million.
