When a famous lay preacher, Rev. Randal Day, accidentally conjures a demonic spirit while trying to "cure" a teenage girl, Esther, through aggressive gay conversion therapy at one of his facilities, he tries to hide his mistake in a church house deep within a security complex. Hell bent on orchestrating a mass suicide in its name, the demon - an ancient spirit malevolent spirit named ARDA - starts taking its toll on the preacher and his helper and they revert to desperate biblical methods to exorcise her.