Super-Sleuth is a 1937 American mystery comedy film directed by Ben Stoloff.

[2] Super Sleuth was a remade in 1946 as Genius at Work, with comedy team of Wally Brown and Alan Carney.

Bill Martin's (Jack Oakie) boasts irritate the real detectives of the Los Angeles police, as well as studio publicist Mary Strand (Ann Sothern), who loves Bill but doesn't appreciate the actor's arrogance.

A mysterious killer known as the "Poison Pen" decides to murder Bill, annoyed with his last movie.

By mistake, film co-star Ralph Waring (Bradley Page) is killed by the Poison Pen, and stand-in Larry Frank (Alan Bruce) is suspected of the crime.