Private detective Miroslava Volgina is convinced that life in Russia is not easy for anyone, and this new case only confirms her belief. Lidia Revakova, a successful moneylender, was found murdered, and the police arrested her partner, Vitaly Kukushkin—the heir to her fortune. The suspect’s mother is sure of his innocence and turns to Miroslava for help in finding the true killer. The detective accepts the challenge and begins the investigation together with her loyal assistant Maurice.