The movie is a spoof of Saturday Night Fever (1977). This goes so far as to vary that disco movie's star's name in the title - John Travolto instead of John Travolta. The French name for the film is also similarly, "John's Fever".
The title of the identity that Gianni (Giuseppe Spezia) wanted to prove that he was, was that he really could be a "King Biscuit".
The name of the night-club discotheque was "John's Fever".
This picture has been labeled "the first and only Travoltasploitation movie" i.e. a John Travolta exploitation movie.