The story of Sulphur for Leviathan revolves around a nun, who suddenly finds herself progressively fantasizing about things that shouldn't be in her head, increasingly having to face her own doings of blasphemy, all leading up to something demonically dark and sinister. Portrayed in a surreal manner both in color and black and white, with a heavy focus on elegant cinematography, the film tells a satanic tale of unfulfilled desires, lust, blasphemy and existential dread, packed in a controversial and disturbing, but calm and poetic experience that is heavily inspired by Andrei Tarkovsky, with a touch of satanism.