In a world where technology competes with magic, the impossible does not exist. Velvet Treasure, analyst of the Cerberus Corps, makes sure of this at her job every day. But even her boundaries of the possible are significantly expanded when one day in the middle of the night she is called to a new crime scene. In a house surrounded by Corps staff and magicians, she encounters the inexplicable - an exact copy of herself. And a little later, the former boss Nathaniel Bond, who is considered dead, unexpectedly returns to her life, whom she loved without an answer and lost before she had time to say the main words. Together they will have to figure out who, how and why creates monsters with human faces. But was this Nathaniel she knew? And who is the real monster in this whole story?