The director of the French Ministry of the Interior summons Serge Cazals, an Interpol agent, to unmask the leaders of an organization that sells military intelligence and has just made a name for itself with the assassination of Secret Service ace Georges Dandieu. Cazals is soon spotted by his adversaries and dangerously threatened. Through an intermediary in the organization, he obtains a telephone number that leads him to various leads, but to no avail. He then decides to set a trap, with the help of his friend Violaine.

After a planned robbery on an armoured car the investigating police officer encounters a female journalist who specialises in criminology, and who he suspects may have had a role in the heist.

Via Something Weird: "Four men representing the world’s great criminal organizations unite to locate a cache of sunken treasure. The treasure is in fact a fortune in diamonds and secret documents that was lost by the Germans in the seas off Monte Carlo during the war. Following their every move are representatives from every secret agency in the world, amongst them, the British, the Russians, the Germans, and the Americans, all seeking the important papers contained within the treasure."

Via Something Weird: "Four men representing the world’s great criminal organizations unite to locate a cache of sunken treasure. The treasure is in fact a fortune in diamonds and secret documents that was lost by the Germans in the seas off Monte Carlo during the war. Following their every move are representatives from every secret agency in the world, amongst them, the British, the Russians, the Germans, and the Americans, all seeking the important papers contained within the treasure."

Via Something Weird: "Four men representing the world’s great criminal organizations unite to locate a cache of sunken treasure. The treasure is in fact a fortune in diamonds and secret documents that was lost by the Germans in the seas off Monte Carlo during the war. Following their every move are representatives from every secret agency in the world, amongst them, the British, the Russians, the Germans, and the Americans, all seeking the important papers contained within the treasure."

Back from Indochina, Tony and Dick, two French soldiers, are now in possession of more than 20 million, entrusted by a trafficker. They buy a nightclub in the district of Montparnasse but are soon hunted by the thug who wants to recover his money.

After a planned robbery on an armoured car the investigating police officer encounters a female journalist who specialises in criminology, and who he suspects may have had a role in the heist.

This drama's main asset is Charles Boyer as Pierre, a father out looking for his son one night. Pierre receives a call from a woman who says she will kill herself because of his son. Naturally disturbed at this news, Pierre takes off to find his son and avert disaster. Along the way, he picks up a malcontent, wealthy young woman who decides to stick with him and help him look for his son. After traveling through some of the worst aspects of Paris' demi-monde, Pierre begins to wonder if his son will ever be found. Meanwhile, the relationship with his newfound wealthy friend is heating up.

When an oily attorney dies at the hands of the mafia, a dedicated French detective investigates the man's murder. He soon uncovers a drug-smuggling operation and lets his sawed-off shotgun do the talking to the toughs in this Gallic gangster feature.

Back from Indochina, Tony and Dick, two French soldiers, are now in possession of more than 20 million, entrusted by a trafficker. They buy a nightclub in the district of Montparnasse but are soon hunted by the thug who wants to recover his money.