Philosophy - against Death. A brilliant mind - against a criminal mind. The great Immanuel Kant - in search of a mysterious killer. Small, quiet Konigsberg is shocked by a series of mysterious, brutal murders, which are clearly beyond the power of the young judge Hanno Stiffenis, who is forced to ask for help great philosopher. Kant, who regards the investigation as an exciting game, agrees to play the role of an amateur detective. However, the stakes in the game gradually increase. And the killer is still one step ahead of the judge and the philosopher...