In Paris, many citizens go to the precinct after the doors of their apartments have been sprayed with a 4 and the letters "clt". When a dweller is found mysteriously dead in his apartment, Detective Jean-Baptiste Adamsberg and his partner Danglard investigate...
Have Mercy on Us All aka. Seeds of Death is a 2007 film about the return of the Plague to modern Paris, directed by Régis Wargnier and based on the 2003 novel by Fred Vargas.