Weird things have been happening to Alena Sklyarenko, a psychoanalyst and mother of three: someone's ringing her doorbell; the man in black is watching her family; she finds a satanic sign near her door; and a ghost is haunting her client. At the same time, Detective Oleh Kosnik's life collapses: unexplained events, unfaithfulness, betrayals, deaths of his friends. Alena and Oleh must now find out who or what is hunting them--and stop it before it destroys them.