In 1980s Hollywood the beautiful star of a hit TV cop show is being sent strange letters. At first Sarah Broughton dismisses the letters. But when they take on a disturbing tone and Sarah discovers a body outside her Malibu house the experts are brought in. Working as a detective in the LAPD Threat Management Unit Arvo Hughes has seen it all before; he knows the language they use and the patterns they follow. But there is no pattern to follow here. Dealing with an unpredictable and violent killer Arvo feels certain Sarah's stalker must have met her before. But with the squeaky-clean star doing all she can to keep her memories locked away Arvo must delve into her past himself.