With a title like that, how can you go wrong?
The Sinful Dwarf is a somewhat typical 1973 exploitation flick with the atypical idea of casting flannel-wearing Olaf the dwarf as the lead. Olaf runs a really shady looking hotel with his equally shady, always drunk mother. When young couples come stay in a room, Olaf grabs the girls, locks them in the attic, keeps them doped up and then rents them out to horny, middle-aged Danish men.
Oh, did I mention he has a side-business venture of smuggling heroin in teddy bears? Because he does.
If you need something terrible and wonderful to watch, pick up this forgotten little gem.