Michael, working in one of Yalta's currency bars, spent a huge sum of money grooming a sexy blonde Galina. To settle the debt, he and his friend Alik decide to rob an apartment in Moscow, where the private collection contains seventeen diamonds of twenty carats worth several million dollars. The investigation into the robbery with the murder was entrusted to investigator Yuri Zheleznikov, who is to find "Shah Diamonds" taken from the country by criminals.