In a cold French city where suicide is a common urge, there is a colorful shop, managed for many years by the Tuvache family, where it is very easy to obtain the necessary tools to satisfy the sinister desires of so many depressed citizens.

In 1850, on the isolated French island of Saint-Pierre, a murder shocks the natives. Two fishermen are arrested. One of them, Louis Ollivier, dies in custody. The other, Neel Auguste, is sentenced to death by the guillotine. The island is so small that it has neither a guillotine nor an executioner. While those are sent for Auguste is placed under the supervision of an army Captain.