The best Raymond Meunier’s thriller movies

Four prison inmates have been hatching a plan to literally dig out of jail when another prisoner, Claude Gaspard, is moved into their cell. They take a risk and share their plan with the newcomer. Over the course of three days, the prisoners and friends break through the concrete floor using a bed post and begin to make their way through the sewer system -- yet their escape is anything but assured.

Marceau Léonetti, a competent and energetic officer stops by chance the son of an influential lawyer driving under the influence of alcohol. A few months later, the lawyer falsely accuses Léonetti as being violent and incompetent. As a result Marceau is transferred to a small police station, where he meets young and beautiful Jeanne. Soon they are faced with a tough investigation.

In 1943, a German commando conceals a large quantity of gold in an undersea cave on the coast of Corsica. Years later, Schlumpf, the sole survivor of the commando, returns to Corsica to recuperate the treasure -- with British and Soviet spies on his heels, and closely monitored by Dromard, from the French intelligence services. The monocled Dromard is convinced that he can outfox his opponents, but difficulties accumulate: despite his plump appearance, Herr Schlumpf is a sly fellow; Corsica is teeming with treasure hunters from various nationalities; and all parties readily resort to unnatural alliances, brazen treachery, and strong-arm tactics. Who will get the treasure?

The Marquis de Villemaur reunite strange visitors in his Castle, to meet a survivor of the Third Reich. There is an Italian fascist, Heinrich; a German, Matthias; a Russian; and Dromard, a blind French war hero with a black monocle. - from IMDB