Maniac (1934 film)

Maniac, also known as Sex Maniac, is a 1934 blackandwhite exploitationhorror film, directed by Dwain Esper and written by Hildegarde Stadie, Espers wife, as a loose adaptation of the Edgar Allan Poe story The Black Cat, with references to his Murders in the Rue Morgue. Esper and Stadie also made the 1936 exploitation film Marihuana.

Don Maxwell William Woods is a former vaudeville impersonator who is working as the lab assistant to Dr. Meirschultz Horace B. Carpenter, a mad scientist attempting to bring the dead back to life. When Don kills Meirschultz, he attempts to hide his crime by becoming the doctor, taking over his work and copying his appearance and manner. In the process, he slowly goes insane.The doctor treats a mental patient, Buckley Ted Edwards, but accidentally injects him with adrenaline, which causes him to go into violent fits. Buckleys wife Phyllis Diller discovers the body of the real doctor, and blackmails Don into turning her husband into a zombie. The ersatz doctor turns the tables on her by manipulating her into fighting with his estranged wife Thea Ramsey, a former showgirl. When the catbreeding neighbor Goof sees whats going on, he calls the police, who stop the fight and, following the sound of Satan the cat, find the body of the real doctor hidden behind a brick wall. ........

Source: Wikipedia