Anthropophagous (1980)

Anthropophagous
Horror
Tourists take a boat to a remote island, where they find that most of the people have disappeared, and something is stalking them. They find a hidden room in the big mansion on a hill, and an ancient diary, which gives them clues to the source of the terror.
Starring
Tisa Farrow, Saverio Vallone, Serena Grandi, Margaret Mazzantini, Mark Bodin, Bob Larson, Rubina Rey, Simone Baker, Mark Logan, George Eastman
Directed By
Joe D'Amato