Detective Sergey Babkin takes a case from a mysterious man named Lancelot, who experiences inexplicable changes in the space around him. When Lancelot suddenly dies right before the detective’s eyes, Sergey begins investigating this mysterious murder. In the process, he discovers that the case is connected to deeply hidden secrets from the past—full of envy, hatred, deception, and unresolved grievances. Together with his partner Makar Ilyushin, he dives into a dangerous investigation that will lead them to the solution of many mysteries.