A telephone repairman in Los Angeles uses his knowledge of electronics to help a bookie set up a betting operation. After the bookie is murdered, the greedy technician takes over his business. He ruthlessly climbs his way to the top of the local crime syndicate, but then gangsters from a big East Coast mob show up wanting a piece of his action.
A man determined to track down the fabled Arizona gold mine known as The Lost Dutchman has an affair with a married treasure hunter, whose pursuit of the mine has lead her to double-cross her husband.
House Un-American Activities Committee investigators Jim McLain and Mal Baxter come to post war Hawaii to track Communist Party activities even though belonging to the party was legal at the time. They are interested in everything from insurance fraud to the sabotage of a U.S. naval vessel.
