In a plot that clearly foreshadowed Sam Fuller's Shock Corridor, private detective Ross Stewart (Richard Carlson) checks himself into a mental hospital in an attempt to locate a corrupt judge hiding from justice. But before Stewart can reveal the truth, his true identity is discovered and he becomes a victim of his own ruse. With the help of a deranged punch-drunk ex-prizefighter (Tor Johnson of Plan 9 From Outer Space), the doctors at La Siesta Sanitarium concoct a plan to make Stewart a permanent resident. And the only person who shares Stewart's secret, the only one who can rescue him from certain death, is the scheming woman who sent him there. (Lucille Bremer).