Directed by Gilles Grangier | Starring: Jean Gabin, Françoise Fabian, Michel Constantin, Paul Frankeur

Gangsters from the United States try to kill a key government witness whose testimony could help land an influential mobster in jail. It's up to detective Maigret to deal with the FBI and a series of underworld figures to save the life of the witness.

IMDb Maigret voit rouge movie posters