A story about a new method of heart surgery using hypothermia, developed by the Hero of Socialist Labor, Director of the Institute of Circulatory Pathology of the Siberian Branch of the USSR Academy of Medical Sciences, Professor E. N. Meshalkin. Clinic view. Reception and examination of patients in the clinic of the institute. E. N. Meshalkin and his colleagues during the operation. The professor is talking with the patient L. Petrov, who underwent surgery a year and a half ago. EN Meshalkin talking and examining children in the children's department of the clinic, talking with their parents. Children in the ward for the game. Discharge from a healthy child.