Your love gave me back my life... Harry, a young and handsome millionaire inherits a mysterious castle in the Carpathian Mountains. His friends, James, Captain Wright, Georges and a specially hired librarian Karl Ivanovich help him to deal with the numerous papers, letters and diaries, which take our heroes into the past. Archival search is necessary not only for entering into the rights of inheritance, but also to understand the causes of the outbreak of the epidemic of deaths in the castle.