In the art gallery of the state of emergency - Kuindzhi's sketch disappeared from the storerooms! Before making a fuss, the museum employee asked her old friend, Colonel Viktor Doroshin, to try to deal with this problem in private. At first, the matter did not seem difficult to him. In addition, a pleasant bonus awaited Victor - an acquaintance with a charming art critic Ksenia. The girl tried to help and supplied Victor with the necessary information in the investigation about colleagues and the internal affairs of the gallery. Not high relations reigned in this temple of culture! And the simplicity of the task turned out to be deceptive - it turned out that not only Kuindzhi had disappeared from the storerooms. And then one of the gallery employees was found dead! And relations with Ksyusha suddenly took a strange turn ...