Antonia Scott-the daughter of a British diplomat and a Spanish mother-has a gifted forensic mind, whose ability to reconstruct crimes and solve baffling murders is legendary. But after a personal trauma, she's refused to continue her work or even leave her apartment. Jon Gutierrez, a police officer in Bilbao-disgraced, suspended, and about to face criminal charges-is offered a chance to salvage his career by a secretive organization that works in the shadows to direct criminal investigations of a highly sensitive nature. All he has to do is succeed where many others have failed.