Razumov was a fighter pilot for the Soviet Union and was shot down over Germany. He ended up in a POW camp for Allied air crew with severe burns, where he was under the care of David Charters who was doing similar work to McIndoe and had connections to him through the International Red Cross. At the end of the war, Charters dressed Razumov in a British uniform and got him to Britain aboard a plane repatriating patients and POW's, and he was brought to QVH.

In July 1946, as his treatment was reaching completion, Razumov was visited at QVH by two men from the Soviet Embassy - they went for a walk in the park and Razumov never returned to the hospital.