In an attempt to cure a rare blood disorder, Dr. Michael Morbius has given himself an insatiable thirst for human blood. He became a living vampire. Now Morbius seeks to get rid of his curse and stop the demonic cult from unleashing hell on Earth. He entered into an alliance with Amanda Saint, whose sister is one of the leaders of the Fire Demon cult. Katherine Saint, also known as Poison Lark, has only two goals: to bring the forces of hell to Earth and kill Morbius and Amanda. Morbius and Amanda pursue the cult members and head to New York, determined to stop Poison Lark at any cost. But suddenly they encounter an underground fight club, where different monsters fight each other, and Morbius becomes the star of the arena, forced to kill or be killed...