This film absolutely deserves every one of the accolades it has received over the years. This is one of the original film noirs and it comes packed with double-crosses, shady dealings, plot twists, murder, and a femme fatale.
The performances, especially Fred MacMurray as the lead are tremendous. The black and white cinematography is breathtaking and the dialogue is to die for. This was directed by the genius Billy Wilder who also made Sunset Boulevard (some of the best dialogue ever put on film). He had a knack with stories like this and really knocked this one out of the park. Highly recommended.