The French Key is a 1946 American mystery film directed by Walter Colmes and written by Frank Gruber. The film stars Albert Dekker, Mike Mazurki, Evelyn Ankers, John Eldredge, Frank Fenton and Selmer Jackson. The film was released on May 18, 1946, by Republic Pictures.

Plot

The French Key is an adaptation of Gruber's novel of the same title, one of more than a dozen in a series featuring detective Johnny Fletcher. In this film Fletcher and his partner return to their hotel room and find a corpse clutching a gold coin. Attempting to solve the case, they deal with coin collectors and a pool room fight in addition to spending a night in jail.