The beginning of the 2000s. New realities, instant adaptation to the proposed circumstances, enchanting careers, unexpected unknown professions... All this could have happened only at the turn of the century, when the Soviet system instantly went out of fashion, replaced by the lightning invasion...
"Your husband is sleeping with your student" – Olga finds such a note in one of the bouquets that were presented to her in honor of her triumphant speech at the scientific forum. Olga is a mathematician. She can easily figure out who sent this anonymous letter. Except this man is found dead. This...
During the celebration of the dean's anniversary, mathematician Olga Barkovskaya finds the culprit of the celebration murdered. Next to the body is a card from an unknown game, very similar to the one that was thrown to Olga the day before. It seems that Barkovskaya is being invited again to solve...
