In czarist Russia, a neurotic soldier and his distant cousin formulate a plot to assassinate Napoleon.
France, 1893. Joseph Bouvier attempts to shoot his love who refused to marry him and to commit suicide. Upon release from the filthy asylum where he was placed, with bullets still remaining in his head, he wanders the country roads and rapes and murders many teenagers over years. The judge Rousseau captures him, but to serve his ambition seeks to avoid that Bouvier is simply declared insane.
The body of a young woman is discovered near a farm. The judge, Larcher is in charge and thinks that the farmers have something to do with the murder.
