The Romanian Incident is a locked-door murder mystery in the vein of an Agatha Christie mystery. The story is set during the Cold War in the Romanian mountains during a harsh winter blizzard. A group of guests, with no apparent connection, is gathered at a Romanian castle turned into a luxury resort when one of them is found dead in their locked hotel room. Everyone is under suspicion and it is up to the young KGB specialist Polina Tolkunova to unravel the mystery. More will die before the mystery is solved.