Simon, King of the Witches (1971)

Simon is a modern day warlock. Though he lives in a storm drain and sometimes talks to trees, he's deadly serious about his witchcraft. After being picked up for vagrancy, Simon spends a night in jail with Turk, a young hustler with connections to powerful people such as Hercules, an aging hipster who hires Simon to work one of his groovy parties. There he meets Linda, the DA's pill-popping daughter. In between romanic dallances and colorful sex magic ceremonies, Simon must contend with those who dare to challenge his magical prowess causing him to summon the dark world for his revenge.