A brilliant but troubled scientist flees San Francisco after his sinister experiments are exposed, only to take refuge on a tropical island where he wreaks havoc on the native population. However, his reign of terror is soon disrupted by the arrival of a shipwreck survivor, who becomes determined to liberate the islanders from the scientist's grasp.
The Mad Doctor of Market Street
A brilliant but erratic scientist flees the mainland after his outlandish experiments are exposed, finding a tropical haven where he wreaks havoc on the island's inhabitants. Meanwhile, a shipwrecked castaway stumbles upon the island, only to discover the mad scientist's sinister presence.
