The famous Moscow detective Lev Gurov decides to go to the Caucasus: to breathe fresh air, rest from the bustle of the capital, and go skiing. But a peaceful vacation doesn’t work out. Not far from the hotel where the detective was staying, businessman Igor Semenov dies under mysterious circumstances. Grief-stricken widow Lidiya turns to Gurov for help, and he has no choice but to take the investigation into his own hands. At first, the detective suspects Semenov’s business partner, but soon comes to the conclusion that the death of the businessman was beneficial primarily to Lidiya herself…