An unexpected guest arrives at Professor Alexeyev’s country cottage—Marina, the host’s ex-wife, whom no one was expecting at the dinner party. A few hours later, the woman is found dead. Young and inexperienced investigator Koreshkov wants to chalk it all up to a domestic dispute, but the victim’s sister, Tanya Grushina, does not believe the official version and begins her own investigation. Step by step, she discovers that Marina’s life was connected to a secret capable of destroying many reputations and destinies. Each guest at that fateful dinner is hiding something, and Tanya is certain: the killer is prepared to commit another crime just to keep the truth from coming out.
