In the summer of 1912, Prince Felix Navrotsky, tired of social life and in love with the young St. Petersburg beauty Anna Vetlugina, comes to Helsingfors for the funeral of his uncle, not knowing what role this trip will play in his fate... The young Finnish Lotta Janson, arriving in search of work to the capital of the empire, for the first time experiences a feeling of love, but, not having time to enjoy happiness, she finds out that she has a rival... Princess Anna Vetlugina is ready to go to great lengths to return the passion that has eluded her, but even she, a brilliant aristocrat, has constant success with men, it is not always possible to resist fate... The river police catch the corpse of a young woman from the Neva. The thread from the murder leads to a devilishly cunning scam...