The owner of an equestrian club dies suddenly at one of the holiday parties. It soon becomes clear that someone deliberately took his life. But who? The answer to this question is decided to be found by the former head of the criminal investigation department, a friend of the deceased, Colonel Vinogradov, who was asked to retire early, having “sold” his position to a more “suitable” candidate. The reader will be able not only to try on the role of a detective, but also to get answers to pressing questions of the day: “What lengths is a person willing to go to get what he wants?”