In this entry in the enduring series, the suave jewel thief finds himself helping the police break up a ring of diamond smugglers. Along the way, he winds up accused of both robbery and murder.

The Hollywood Post's sports writer, Jimmy Jones (Charles Quigley), yearns to be a crime reporter, and thus looks for foul play on even the most routine assignments. In writing a piece about a girl's softball team, Jimmy discovers that their sponsor, Foy Harris (John Gallaudet), is a notorious racketeer who has supposedly gone straight. Jimmy suspects Foy is still up to no good. He begins hanging around the team to do a bit of snooping, and also to be near the cute new pitcher, Ann Casey (Jacqueline Wells).

A young woman's murder sheds light on a crooked talent agency.

Police detectives battle the League of Murdered Men, a gang of resurrected dead criminals.

Jerry tries to out compete his older brother Cass, a lieutenant Naval aviator. Cass is both tough on and protective of his brother, but Jerry can give it right back.

Adults who grew up as slum kids meet later in life, but murder disrupts their reunion.

Marc Hill is the attorney for Emmet Devrey, a real estate developer with a past, who is being blackmailed by his former partner Sam Baggett. When Sam's unfaithful wife Marge cooks up a scheme with her used car salesman lover Jeff Calder to bilk both Devrey and her alcoholic husband, Sam is killed and Devrey is accused of the crime. Mark is called to prove his employers innocence.

Private eye Jerry Church is hired by a criminal defense lawyer after five mobsters he has gotten acquitted are apparently strangled by a serial killer.

A greedy, scheming woman is found murdered in her studio, and the police find that there is no shortage of suspects who wanted to see her dead--among them a rich husband she wouldn't divorce unless he paid her a huge settlement, a lover she caused to be fired from his job and an assistant whose fiancé she tried to seduce.

Although the son of a skilled golfer and an outstanding player in his own right, Harvey Miller is too nervous to play in front of a gallery, so he acts as coach and caddy for Joe Anthony, his girlfriend's brother.

Prizefighter Johnny is in love with his promoter O'Malley's daughter Pat. His best friend, sports reporter Rick, is also in love with her but knows that she loves Johnny. Lonely Rick takes up drinking and women (including Marilyn Monroe in nightclub bit part). Johnny knows his right hand is going bad and has to work fast to make real money. Written by Ed Stephan