A mysterious hypnotist (Chester Morris) reverts his beautiful assistant (Marla English) back into the form of a prehistoric sea monster that she was in a past life.

Deep in the jungles a mad scientist is using the natives’ voodoo for his experiments to create an indestructible being to serve his will. When a party of gold seekers…

A crooked detective masterminds a robbery then fights to keep his money.

A trio of thieves make their getaway by kidnapping a young hot-rodder, and take over a mountain cabin for a hideout after overpowering its occupants.