Slippery Thomas Rako, a hoodlum union boss, slides into oblivion. Under the statute of limitations he is declared dead. But the F.B.I. has its doubts and would like to talk to Thomas. Milo March, that Perry Mason in-the-rough, sets out to win where J. Edgar's finest have failed. Picking his way through the crossfire of gangland's top gunsels, hired to make the ex-union man doubly dead, and plucking idly at the kind of women Humphrey Bogart always used to get, Milo finds his man and the fans will find Milo.