Events take place on the outskirts of Moscow in 1965. In the center - the story of the exposure of a woman executioner who, during the war, at the behest of the Germans, shot prisoners, partisans, and civilians. This is actually a separate civil war of the fanatic with their people. During the war, she was barely 20 years old, and on her account there were already fifteen hundred murders. She shot her victims with a machine gun, hiding behind a toy bunny mask. Then she drank a bottle of moonshine and then appeared the next morning without a mask and lived an ordinary life, the same as everyone else ... Therefore, after the war, it was very difficult to figure out the killer. This case was assigned to the chief investigator. His suspicions fall on one or the other woman ...