Attack of the Giant Leeches

A backwoods game warden and a local doctor discover that giant leeches are responsible for disappearances and deaths in a local swamp, but the local police don't believe them.

Attack of the Giant Leeches is a 1959 horror sci-fi movie directed by Bernard L. Kowalski, starring Ken Clark, Michael Emmet, Jan Shepard. It holds an IMDb rating of 3.8/10 from 5,287 votes and runs 1h 2m.