Chemical Wedding (released in the U.S. as Crowley) is a British science-fantasy horror film produced by Bill and Ben Productions in conjunction with the London-based Focus Films. It is directed by Julian Doyle. The story is based on an original screenplay by Bruce Dickinson, front man of heavy metal band Iron Maiden. Dickinson released a solo album entitled The Chemical Wedding in 1998, which, despite sharing the title and title track from the film's soundtrack, is otherwise unrelated.

Plot

Upon entering a virtual reality machine, Professor Oliver Haddo, a modern Cambridge scholar, becomes possessed by the spirit of infamous occultist Aleister Crowley, as the machine's program has been corrupted by a former follower of Crowley's. Resurrected 50 years after his death, Crowley begins his occult practices anew, seeking a new "scarlet bride" whom he can marry in an occult ceremony, which will increase his power.