«Black Cat» – a gang that consists of young men. They are sportsmen, komsomoltsi, strike workers, but only during the day. At night the whole city lives in panic and fear because of them. Everybody knows them, knows their names but one can hardly guess they are gangsmen who rob the citizens of Moscow and the nearby region. Tthe officers of the Moscow Criminal Investigations Department (MUR) are looking for these model young men. It takes them several years to find the criminals and to catch them.