Isepa

A house in Paris happens to have two families living there with the same last name. In one apartment lives opera singer Gambetta Duval with his two daughters, Jeanne and Nita. In the second apartment lives old lady Duval with her grandchild Philippa and an her lodger, the physician Leon Monnier. Jeanne is secretly in love with Dr. Monnier who is secretly in love with Nita, who is secretly having an affair with the great playwright Armand de Marny.

Love entanglements among the upper class of Paris. The young upper-class Parisian Valentin van Zanten has a luxurious lunch-density dinner with the flirtatious Inez Maria, when the "friend" shows up and interferes with his own and successful pre-man manners.

London socialite Cathleen Paget's adventures in love and misfortune a year after the death of her husband. Ivor Willington and Lionel Jesop play cards for who will be given the shot at flirting with Paget, as to claim her wealth. But when her brother Bruce has lost the family fortune in bad business, Cathleen is suggested to court Nordic giant Birger Holm. The two marry and the families financial problems seem to be at bay, although the life in the northern Sweden is wearing Cathleen down as she misses parties, friends and dancing at the Savoy Hotel.

The young Tony will travel from Budapest to the countryside to marry his cousin Katinka, the oldest of the seven sisters Gyurkovics. Because Tony is already secretly married to another, the situation is problematic. Mizzi is the impish middle sister of seven who is glad to leave boarding school and has many adventures making her way back home. This includes impersonating a countess and meeting Count Horkay who is impersonating her cousin Tony, his friend whom Mizzi's mother intends to marry her oldest sister. The younger set all have their own ideas of who they love despite the plans of the older folks.