A street dog named Samson in his attempts to hide from stray dog catchers finds himself at the Metropolitan Opera. There, he meets charming Margot. Margot is a pet of Anastasia, the theatre's prima ballerina. The plot thickens as the unique tiara that belonged to the queen of Great Britain and that Anastasia has to wear in the fourth act of the ballet, is stolen from the dressing room. Without the tiara, the show cannot go on and must be cancelled. Now Margot and Samson have to find the thief, retrieve the tiara, and save the day to the sounds of the music by the great Georges Bizet.