Varvara Kartashova, the daughter of the owner of the Rose of Winds hotel chain in the Crimea, Moscow and Turkey, is returning from abroad. She learns that her father is cheating on his partners. And the quiet life of a wealthy family ends. Kartashov finds himself in a difficult situation, and is rescued by a fan of Agatha Christie's work, amateur detective Ms. Okhlopkova, who closely monitors what is happening around and slowly investigates the tangle of crimes and family secrets ...