Ballard and Parker investigate housekeeper Yulia Kravetz's murder. Meanwhile, the hunt for the serial killer's latest victim reunites Ballard with retired Detective Harry Bosch.

The 2006 death of fraternity member Nick Thatcher was initially ruled an accident. When a video goes viral accusing the fraternity of murder, Ballard and her team are forced to reopen the case.

Ballard uncovers an LAPD conspiracy with connections to a Mexican cartel. The Pearlman case heats up when clues lead to a dangerous showdown with a potential suspect.