A photographer named Corrado snaps a picture of Antonietta. When it shows up on the front page of a magazine, she wants to take him to court over it.
Lina, a music hall singer, has fallen in love with Sergei, a Russian prince. Maestro Doria, who gives her voice lessons and who hopes to make her his mistress, takes her to Paris where she becomes the star of the "Folies-Plastiques".
A shy and oppressed professor inherits a musical theater show, so he has the opportunity to change is life and find the real love.
