Inside the Kit Kat Club of 1931 Berlin, starry-eyed singer Sally Bowles and an impish emcee sound the clarion call to decadent fun, while outside a certain political party grows into a brutal force.

Prizefighter Jimmy Nolan, facing an opportunity to get a championship fight, is knocked out when he sustains what is apparently a permanent injury to his arm. From there, Nolan's path leads downhill. He is drawn into a romance with a nightclub entertainer, then is framed on a theft charge by a jealous suitor. After his prison term, Nolan makes a spectacular comeback in a fight which proves his courage and integrity, while disproving the fallacy about the old sports adage that "they never come back."

A visit to a Hollywood nightclub, featuring caricatures of, among others, Walter Winchell, Hugh Herbert, W.C. Fields, Katharine Hepburn, Ned Sparks, Johnny Weissmuller, Lupe Velez, John Barrymore, Harpo Marx, George Arliss, Mae West, Stan Laurel, Oliver Hardy, Clark Gable, Edna May Oliver, Gary Cooper, The Dionne Quintuplets, Groucho Marx, Helen Morgan, Wallace Beery, Edward G. Robinson and George Raft.

A variety film consisting of 13 solo songs and two musical sketches, one comedic, the other serious, all in the Italian language but made entirely in the USA by members of the Italian-American community in New York. Missed by the American Film Institute and IMDb, information was found in the New York State Archives' files from that state's old censors' office.

Host Harry Rose mixes a "cocktail" of musical acts.