A croupier is murdered in a Mexico City gambling casino and the Lone Wolf is suspected. Sharon Montgomery, wife of diamond merchant Charles Montgomery, becomes involved in a jewel heist, in which again the Lone Wolf is a suspect.
Director: D. Ross Lederman.
Writers: Louis Joseph Vance, Phil Magee, Maurice Tombragel, Martin Goldsmith.
Stars: Gerald Mohr, Eric Blore, Sheila Ryan, Jacqueline deWit, Bernard Nedell, John Gallaudet, Winifred Harris, Nestor Paiva, Peter Brocco, Alan Edwards, Fred Godoy, Theodore Gottlieb, Leonardo Scavino.
Composers: Mischa Bakaleinikoff (uncredited), Irving Gertz (uncredited).
Cinematography: Allen G. Siegler (DP).