Famous author Bretonneau gets his ghost writer Moluchet to impersonate the notorious criminal Jim la Houlette and pretend to steal a manuscript to boost the sales of their novels.
A young man marries the daughter of a famous actress, but is visibly more attracted to his stepmother. She manages, not without difficulty, to reconnect the bonds of a vacillating household.
An engineer is hired to plan and oversee the construction of a undersea tunnel between Europe and the US. However, certain interests don't want to see the tunnel built and use every means at their disposal, including sabotage and murder, to stop its construction. French-language version of the 1933 German DER TUNNEL, q.v.
