Dark City

Arthur Winant, a stranger in Chicago, commits suicide after losing $5,000, which did not belong to him, in a crooked card game. The group of gamblers, of which Danny Haley is a member, worries about the dangers of cashing the $5,000 cashier's check, but this is the least of their worries when one of the group is found hanged, and Police Captain Garvey starts an investigation. Then it becomes known that Arthur had a mentally deranged brother, Sidney who is out to get the gamblers who fleeced Arthur.