The Unknown Terror (1957)★ 4.8/10

Approved · US · 77 min · August 1, 1957

• Horror
• Sci-Fi

Directed by: Charles Marquis Warren

Written by: Kenneth Higgins

A millionaire leads an expedition into a remote jungle to find his wife's long-lost brother, but instead the group finds a mad scientist who has created a fungus monster that feeds on the local inhabitants.