Undertow [1949] [DVD]

Tony (Scott Brady) is the perfect patsy. He's an ex-con and the Chicago police are more than willing to believe the worst of him. So, when some unknown people kidnap him, shoot him and set him up for his future father-in-law's murder, the case seems pretty air-tight. However, like so many noir films, he investigates the case himself and aims to prove his innocence. Along the way, he gets the help from a nice lady and even from a cop.