1947 Hunger and devastation reign in the war-drained country. Bread is worth its weight in gold, and the cost of human life is zero. Cities are controlled by criminal gangs: like black cats, they come undetected under the cover of darkness and easily disappear from the crime scene. A gang operating in Rostov-on-Don is robbing a food warehouse, but OBB Major Yegor Dragun suspects that this is not the work of ordinary criminals..