The Secret of the Crimson Stone

In ancient Babylon, there existed a sect of moon worshippers, the members of which kept an astonishing secret. They possessed a stone that magically transformed a person into a bloodthirsty werewolf under the influence of the moon. In modern times, assistant Liza works at a small firm with her husband and mother-in-law. Escaping from troubles at work, caused by relatives, she hides in the house of an eccentric man named Vasily, while a brutal double murder occurs nearby... Liza suddenly discovers that a similar crime is committed every 14 years…