Boxer Tommy Nelson is accused of killing his manager. While detectives Bud and Lou investigate they come across an invisibility formula with which Tommy injects himself rather than face the police. This sparks an idea for trapping gangster Morgan by having Lou fight champ Rocky Hanlon, with Tommy's invisible help.

| Release Date: | Mar 1951 |
|---|---|
| Genre: | Comedy / Sci-Fi / Sport |
| Cast: | Bud Abbott (Bud Alexander), Lou Costello (Lou Francis), Nancy Guild (Helen Gray), Arthur Franz (Tommy Nelson), Adele Jergens (Boots Marsden), Sheldon Leonard (Boots Morgan), William Frawley (Det. Roberts), Gavin Muir (Dr. Philip Gray), Sam Balter (Radio announcer (voice)), John Daheim (Rocky Hanlon (as John Day)), Paul Maxey (Dr. James C. Turner, Police Psychiatrist), Walter F. Appler (Professor Dugan (uncredited)), Howard Banks (Officer (uncredited)), Bobby Barber (Sneaky (uncredited)), Richard Bartell (Bald man (uncredited)), Milt Bronson (Ring announcer (uncredited)), Ralph Brooks (Man (uncredited)), Russ Conway (Newspaperman (uncredited)), Frank Dae (Col. Duffie (uncredited)), Roy Darmour (Man (uncredited)), Sayre Dearing (Reporter (uncredited)), Ralph Dunn (Motorcycle cop (uncredited)), Edward Gargan (Milt (uncredited)), Harold Goodwin (Bartender (uncredited)), Dick Gordon (Man (uncredited)), Kit Guard (Fighter on rowing machine (uncredited)), Chuck Hamilton (Policeman (uncredited)), Stuart Holmes (Ringsider with cigar (uncredited)), Kenner G. Kemp (Policeman (uncredited)), Donald Kerr (Fight spectator behind Boots...), Perc Launders (Cop (uncredited)), George J. Lewis (Torpedo Al (uncredited)), Rory Mallinson (Tough guy at bar (uncredited)), Ralph Montgomery (Photographer (uncredited)), William H. O'Brien (Fight Crowd Extra (uncredited)), Franklin Parker (Photographer (uncredited)), Charles Perry (Rocky's handler (uncredited)), Syd Saylor (Waiter (uncredited)), Edith Sheets (Nurse (uncredited)), Jack Shutta (Attendant (uncredited)), Carl Sklover (Lou's handler (uncredited)), Billy Snyder (Newspaperman (uncredited)), Frankie Van (Referee (uncredited)), Herb Vigran (Stillwell (uncredited)), Billy Wayne (Rooney, Rocky's manager (uncredited)) |
