His lifelong friend, Inspector Gouvion, was the only survivor when a valuable consignment of gems was lifted by a violent criminal known as Quinquin, who killed not only the rest of the escorts but the three men in his gang as well.

Putting heavy pressure on his sources, he learns that Quinquin is going to rob a mail train and take the proceeds to a deserted sugar refinery.

Waiting there, he personally finishes off Quinquin and in a gun battle his men kill the rest of the gang.

Lautner had to hurry and edit some scenes so that the film might be distributed with a rating allowing spectators over 13 years of age.

[4] Le Monde found that the film showed too much self-indulgence and vulgarity but that its ’American’ cinematographic aspects and its novelty were worth praising.