London, England. Mike, a fifteen-year-old boy, gets a job in a bathhouse, where he meets Susan, an attractive young woman who works there as an attendant.
In the Olden Tymes, Count Regula is drawn and quartered for killing twelve virgins in his dungeon torture chamber. Thirty-five years later, he comes back to seek revenge on the daughter of his intended thirteenth victim and the son of his prosecutor in order to attain immortal life.
In 1939 German U-boat captain Günther Prien receives orders to infiltrate the British Royal Navy base at Scapa Flow and sink British warships.