The man is in prison after taking the fall, but he manages to escape. The poor sap doesn't stand a chance. The escape was arranged for him so that he would be killed in the attempt, and the mob boss isn't happy when he survives because the boss doesn't want to split the heist money.
He has two women in his life -his faithful moll and his lawyer's assistant- who both want what they think is best for him. Burr is the mob boss who is aiming to take him out. Heartache and tragedy, a perfect film noir.
I can't find a trailer, but here's a clip featuring Raymond Burr:
Senses of Cinema says, "It’s one of those noirs where you hold your breath, where its tension gets your heart rate up almost so you can hear it beating." Noir of the Week praises it. Rotten Tomatoes has a 100% critics score.