Ex-con Frank Harbach comes to Herb Maris when a couple of old prison mates pay him a visit. The thugs force him to hold the $30,000 they stole in a robbery, or they'll implicate him in their crime and do harm to his wife. When the pair comes to collect their cash, they discover it missing; Frank's wife had turned it over to her father, a cop. The desperate duo take Frank and Herb hostage. Alarmed by Maris' failure to show up at his office, Lt. Weston jumps into action to save his friend.