The bikers are the heroes and the lawmen are the villains in this vintage action drama. The Spirits are a motorcycle club who ride the highways and country roads of Michigan; while they look rough, wear beat-up denim and favor Harley Davidsons, the Spirits are good guys at heart, more likely to help a stranger change a flat tire than rough him up. Northville Cemetery Massacre is a 1976 motorcycle exploitation film written and directed by William Dear and Thomas L. Dyke. Nick Nolte did an uncredited voice over for the film's lead actor, David Hyry.