When a chance encounter between a squad of Hitler's elite SS troops and a band of gypsies ends in slaughter, the Nazis take a man named Janos Kaldy into custody for the killings. When they find that Kaldy is a werewolf, the Nazis bring in a beautiful young chemist and an aging doctor turned minister to aid in a daring, crazy plan. As the Dr. attempts to regress Kaldy through hypnotism to the root of his curse, the Nazis strive to isolate the enzyme that can turn an army of their troops into an unstoppable killing machine. Steeped in history and drenched in ancient religions and spiritual mystery, Lycanthropos is the original novel that was eventually rewritten into the novel Mark of the Werewolf. One of the most unique werewolf stories ever told.