Unsub

"A riveting psychological thriller inspired by the never-caught Zodiac Killer, about a young detective determined to apprehend the serial murderer who destroyed her family and terrorized a city twenty years earlier. Caitlin Hendrix has been a Narcotics detective for six months when the killer at the heart of all her childhood nightmares reemerges: the Prophet. An UNSUB--what the FBI calls an unknown subject--the Prophet terrorized the Bay Area in the 1990s and nearly destroyed her father, the lead investigator on the case. The Prophet's cryptic messages and mind games drove Detective Mack…