Alain Delon produced, directed, co-wrote, and starred in this story about a solitary thief, jailed for a jewel robbery and the murder of the jeweler, and set free after serving his prison term. His objective is to get his hands on the stolen jewels before a crowd of gangsters reaches them and/or kills him, and before the police can catch up with him again. The hero-thief-murderer manages to romance an attractive woman in the meantime, suggesting his future might be rosier than his past.
~ Eleanor Mannikka, All Movie Guide