AllMovie

At the behest of Elliot Ness (Robert Stack), "Untouchable" Enrico Rossi (Nick Georgiade) goes undercover to pinpoint the source of some 190-proof grain alcohol being smuggled into Chicago. The trail leads to an outwardly respectable pharamaceutical firm, run by E. Carlton Duncan (Edward Andrews) and Brooks Wells (Henry Jones)--who are actually the Brittano brothers, racketeers in cahoots with mob boss Johnny Torrio (Charles McGraw). The trick now is to turn one Brittano against the other--which proves deceptively easy during an evening of drunken revelry.