All the Colors of the Dark (1972)

Jane is a beautiful and distressed woman whose psychological and emotional walls have crumbled. She lost her mother to murder at only 5 years old and later on in life, she loses her baby in a car accident. She suffers from traumatizing nightmares of a man trying to kill her. There is only so much a woman can handle before she completely loses her sanity. When all other therapeutic alternatives hold no true benefit for her, she decides to join a Black Mass. But this Black Mass only turn her nightmares into a reality which she was only trying to escape from. 

This Black Mass which engages in Satanic Rituals brings about a psychedelic and trippy atmosphere. The territory only gets darker and darker for Jane. From the psycho-sexual orgies, long sharp claws for fingers, red herrings, and what not, Jane continues to drown into each shade of darkness as the horrific kaleidoscope turns.