As SFPD Detective Jimmy Spracklin hunts a serial killer at a 1968 music festival in Haight-Ashbury, he has to protect his daughter Marie from both the killer and the police.
Spracklin is already being hounded by Internal Affairs officers when the headless body of a hippie heiress is found in Golden Gate Park.
Now he must solve the high-profile murder while fighting off the IA probe, which is targeting not only Spracklin but also Marie.
One misstep could result in Marie facing a murder.