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...
A young woman is forced into espionage so that her father can escape blackmail. The love of an aviator helps her regain her freedom and secure the arrest of the members of the network, whose leader commits suicide before the police arrive.
