When a minister's wife becomes possessed by Eshu, the Nigerian god of sexuality, an exorcist is called in to drive the evil spirit away.
Acting
Carol Speed's full-body commitment to possessed twitching and eyebrow acting.
Sound
Eshu's voice — apparently recorded through a broken drive-thru speaker.
Practical Effects
DIY demon effects that look like someone shook a Halloween store.

Director
William Girdler
Trivia, insights & behind the scenes
Warner Bros. sued for copyright infringement and got it pulled from theaters after just one month, making it a true cult rarity.
William Marshall insisted on African origins for the demon to push back against Exorcist's Catholic-centric possession narrative, though the film's grasp of Yoruba spirituality remains... creative.