I'll Be Gone in the Dark

Michelle and her editors agree to push her book deadline after being granted access to the Orange County Sheriff's Department's East Area Rapist / Original Night Stalker (EAR/ONS) room. Poring over 37 boxes of files now occupying her daughter's playroom, Michelle and her researcher Paul Haynes explore the case of the "Visalia Ransacker," the perpetrator of a string of burglaries in the early '70s bearing striking similarities to EAR. Overwhelmed by the amount of material and the graphic nature of the crimes she is investigating, Michelle struggles to balance the demands of her self-described addiction to her work with her family life. Painful personal memories, combined with her pressure to solve the case and finish the book leads to a string of sleepless nights and harrowing nightmares, as she becomes increasingly reliant upon prescription drugs to manage her mounting anxieties.

As Michelle's loved ones cope with her sudden death, her work to unmask the Golden State Killer lives on. Inspired by McNamara's interest in genealogy and online DNA testing services, Paul Holes, Chief of Forensics in Contra Costa County, reconstructs the killer's family tree with the help of genetic genealogist Barbara-Rae Venter. After inheriting Michelle's 37 boxes of case files, researcher Paul Haynes and true crime writer Billy Jensen work alongside Michelle's husband, Patton Oswalt, to finish her book, which becomes an instant bestseller. Meanwhile, the release of Michelle's autopsy report rocks her inner circle. Michelle's writing - in which she wrestles with depression and her own mother's sudden death - sheds light on her pain but leaves many questions unanswered.

As 72-year-old former police officer Joe DeAngelo's arrest unfolds in real time, chilling facts materialize that illuminate Michelle's prescience in her book's epilogue, "Letter to an Old Man." Researcher Paul Haynes and true crime writer Billy Jensen try to learn everything they can about DeAngelo. Exclusive interviews with DeAngelo's relatives reveal early family trauma, and his double life as a suburban dad and serial predator. His ex-fiancé also details the behavior and warning signs that lead her to end their engagement. Having finally faced their attacker in court, several survivors meet for the first time and gain strength in their shared desire to confront their pain, move forward, and advocate for all sexual assault survivors. When Patton Oswalt, Jensen, and Haynes connect with survivors and McNamara's fellow citizen detective Melanie Barbeau, Michelle's absence is deeply felt.