What do you get when you take bikers, devil worshippers, and werewolves and mix them all together? You get WEREWOLVES ON WHEELS, by golly!
All I can say is, thank goodness this movie is only 79 minutes long.
A group of devil worshippers give drugged wine and bread to a group of bikers. Then they perform a satanic ritual that features a nude woman dancing on top of a stone slab. Later, a couple of the bikers turn into werewolves and slash the throats of a few of their friends.
Co-starring Billy Gray (who played Bud on the TV series FATHER KNOWS BEST) and Barry McGuire (a singer who had a hit protest song called EVE OF DESTRUCTION).
This would have been better if they just made it a biker movie and left out there satanism and werewolf parts.
Watch at your own risk.