Psychomania

This has to be the only British biker-gang horror movie ever made. Henson is the long-haired leader of "The Living Dead," an obnoxious motorcycle gang whose favorite hangout is a remote field containing a Stonehenge-like aggregation of rocks. Under the guidance of his spiritualist mother, Reid, and her Satanist butler, Sanders, Henson discovers the secret of eternal life: willingly commit suicide in the belief that you'll come back from the dead and once zombified, nothing can kill you. Henson decides to test the theory by driving his bike off an overpass into a river. Soon after his burial--with his corpse sitting upright on his motorcycle--Henson revs up the bike...