Zalman King stars in the cult horror/thriller Blue Sunshine. Turning bald and then foamingly homicidal appears to be the fate of people who took the eponymous acid back in the day and our protagonist rumbles around the city trying to trace the other trippers while evading the police who suspect him of the murders. This is mostly ridiculous nonsense but there's some enjoyment to be had what with the comically overwrought acting, 70's era cheese and acid fuelled rampages. It's certainly not worth searching for but if you stumble across it, don't dismiss it out of hand.
Oliver Reed heads a cast including Burgess Meredith, Karen Black and Bette Davis in a fairly standard 70's haunted house flick called Burnt Offerings. Renting a house for the summer Reed drags his family into a bit of a pickle when the mansion slowly exerts an unnatural influence over his wife and they find it harder and harder to leave. Despite it's 70's cheese, maybe because of the quality of the actors, it builds quite the creepy atmosphere and at it's crescendo the secret behind the mysterious house is finally revealed. An odd little film that's been unfairly neglected.