Release Date: 11 August 1971
A biker gang visits a monastery where they encounter black-robed monks engaged in worshipping Satan. When the monks try to persuade one of the female bikers, Helen, to become a satanic sacrifice the bikers smash up the monastery and leave. The monks have the last laugh, though, as Helen, as a result of the satanic rituals, is now possessed and at night changes into a werewolf, with dire results for the biker gang.
Runtime: 85 min
Vote Average: 4.6
Vote Count: 32
Production Companies : South Street Films,
Production Countries: United States of America
Budget: $ 265000