Vengeance Is Mine(1949)

In this crime drama, a man learns that he has six months left to live, and before he dies he decides to get revenge against the man responsible for his incarceration. First he hires a man to kill him and frame the traitor. Later the fellow learns that he is not sick after all. Fortunately his hit man died. Later the man he wants to avenge has a final showdown with him. A struggle ensues and the fellow kills his enemy in self-defense.