The events take place in one of the capital's clinics. The doctors are doing their best to save the life of a foreman-migrant worker. He has been diagnosed with acute food poisoning. Despite the efforts of the resuscitation team, the patient did not survive. The symptoms resemble Tenge fever. The doctors only know one person who is well-versed in such diseases. It is Igor Drobysh, who worked in Africa for many years. However, due to a conflict with the management, he left the hospital.