Radioactive-drug test an alibi for murder!

A doctor testing drugs on convicts gets mixed up in a murder investigation.

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Main Cast: John Howard, Joan Dixon, Walter Kingsford, Lynne Carter, Robert Shayne, Kim Spalding, Sam Scar, Kenneth MacDonald, Dick Cogan, Frank Cady

Director: Edward L. Cahn

Writer: Orville H. Hampton

Editor: Philip Cahn

Cinematographer: Jackson Rose

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