Moscow, early 20th century: Stray dog Samson, fleeing from animal catchers, finds himself in the Bolshoy Theater, where he meets charming Margot, a pet of prima ballerina Anastasia. 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, is stolen from the dressing room. Without the tiara, the show cannot go on, so Margot and Samson have to save the day to the sounds of the great Georges Bizet.