Yoko Tanaka is one of the best profilers in the FBI. She's been called in to consult on the case of 'Valentino,’ a killer who steals his victims' hearts. Within 24 hours they have a suspect in custody - a nineteen-year-old called Jefferson Winter whose IQ is off the charts. Not only does he confess to the murders, he knows details of the crimes that only the killer could know. It's an open and shut case, or is it?