January 1944. British pilots Brian and James parachute from a plane shot down over Germany. Escaping from pursuit, they enter an ambulance train carrying wounded from the Eastern Front. Having appropriated the personal documents of German officers, enterprising Englishmen feign madness and end up in a hospital located in the Black Forest mountains. However, it soon becomes clear that in the department under the strange name “House of Alphabet” there are other malingerers - four SS men who transported a carload of looted valuables to Germany and want to sit in a quiet place until the end of the war... The position of the new arrivals becomes threatening. What fate awaits Brian and James if they are exposed?.. How to get out of this terrible trap? For the first time in Russian!