The past constantly looks into the future. To understand today, you need to look back. And the crime that private detective Anastasia Kamenskaya is investigating clearly has its roots in the past. Someone killed the terminally ill, helpless surgeon Evteev, who had long since left medical practice. This means that there was some dangerous secret in the past of this doctor, and revenge overtook him on the verge of death. Revenge? However, often under the guise of revenge hides an elementary desire to fix something, improve something in your life. And the people involved in this case are overwhelmed by many passionate desires: the thirst for power, wealth, satisfaction of the most bizarre ambitions... In a word, the very same, so familiar to Nastya, fertile ground for committing risky and reckless acts. But somewhere in the past lurks that very fatal event that caused this avalanche of murders, blackmail, and betrayals. We need to figure him out as quickly as possible and stop all this horror...