The Rico brothers are mobsters in the employ of syndicate head Sid Kubick. Richard Conte plays the one Rico brother who has forsaken crime. But the other Ricos (James Darren and Paul Picerni) haven't yet seen the light, causing a deep rift in the brothers' family bonds. Conte gets word that his brothers have been marked for murder, and tries to warn them. What he doesn't know, at least until the last sweat-inducing moments of the film, is that the syndicate boss himself is the man who has ordered the Rico boys wiped out. The Brothers Rico, adapted from a novel by French detective-story specialist George Simenon, is an interesting thriller deeply rooted in the post-noir style of police thrillers like The Line-Up, with its overt emphasis on crude violence and a dull, almost flat visual style. The strong performance by Richard Conte, as a man out of step with the rest of society, is lost in this film which is in essence a simple thriller, lacking any real noir ambience.
by Hal Erickson synopsis