Ekaterina Verenskaya, a respected teacher, is accused of the brutal murder of her own student. And how could it be otherwise if all the evidence points to her? Only she remained with the deceased in a room locked from the inside, the victim’s blood on her hands, her prints on the murder weapon, and Catherine herself could not remember what happened that terrible night. Relatives and friends turn away from her, no one will lend a helping hand to the madwoman, although Catherine continues to insist that she would never attack her most talented student. Only two are ready to help her in her search for justice: a strange journalist, who himself may be insane, and a girl whose blood is more valuable than life.