The Squeaker is a 1937 British crime film directed by William K. Howard and starring Edmund Lowe, Sebastian Shaw and Ann Todd. Lowe reprised his stage performance in the role of Inspector Barrabal. The film is based on the 1927 novel The Squeaker and the 1928 play of the same name by Edgar Wallace. Wallace's son Bryan Edgar Wallace worked on the film's screenplay. The term "squeaker" is underworld slang for an informer, analogous to the American term "squealer". The film was released in the United States as Murder on Diamond Row.