Jake kisses his girlfriend Caitland goodbye at her departure gate. An active shooter enters Sky Harbor International. Jake’s best friend is shot twice. Dr. Mackenzy Graham, a forensic psychologist, specializes in serial killers. She wants to be one. Caitland hosts a party for her A-list clients in Malibu. After the party, Caitland is alone in the house. The West Koast Killer waits in the dark.