Elena is an emergency doctor. Together with her brigade, she leaves for the crime scene, which was reported by her eldest son Konstantin by calling the desk officer. Elena rushes at full speed, thinking that Kostya has become a victim of a criminal. The worst thing awaits her ahead - the eldest son is the very criminal. Elena is tormented by the consciousness of responsibility and her own guilt. Did she love her child enough? How much of her fault is this? Not trusting the investigation, Elena begins her own search and realizes that she knew nothing about her son.