Watch Maniac

The movie Maniac (1980) is a horror film about Frank Zito, a man who is troubled by the abuse that he received at the hands of his mother. His mother is now deceased, but Frank misses her. He lives in a one-room apartment with mannequins and has become a psychopath that prowls the streets of New York looking for his next victims.

After noticing a woman who snaps a photograph of him, Frank becomes intrigued by the photographer and he begins spending time with her. However, Frank remains psychologically scarred putting the photographer constantly in danger or his murderous spree.