Loginov and Peter investigate the circumstances of a daring and sophisticated jewelry store robbery. Attackers have developed an elaborate scheme: entering the apartment one floor above, they drilled a hole in the floor and entered the shop in the store, taking the jewelry. But have not calculated the time. No time returning to the owners of the apartment living it was decided not to leave.

Accountant killed a boarding school for troubled teens Lavrent'ev. After talking with the director, Loginov and Peter learn that before the tragedy at the accountant had a conflict with the pupils - and Sergey Kravtsov Gleb Vasyutin. But the evidence against them insufficient. Soon it becomes clear that immediately after the murder took Kravtsov a friend's jacket, because his clothes were smeared with blood. Investigators are rushing to arrest, but too late: Hleb is dead.

In a hotel room in Moscow killed a sales representative pharmaceutical company "Salvus" Andrew Schrader. When it discovered the drug "Factor 8", used to treat diabetes. Looking around the body, investigators noticed that the dead man had disappeared from the hands of the clock. Loginov found that on the eve of the tragedy Andrew met with the doctor of the Russian Embassy in Thailand Akimov. Occasion was very unpleasant - the party of "Factor 8", infected with the AIDS virus.