Marshall is a police officer who tries to face the new situation facing his life. He has just separated from his ex and has lost custody of his teenage daughter, which has caused the agent to suffer from an uncontrollable insomino. However, a new clue pertaining to a case makes Marshall focus on this issue. The agent works with Cooper, a retired judge obsessed with protecting as many people as possible, to find Lara, his former partner. Rachel, an expert in identifying the killer’s profiles, will help the duo face the difficult investigation.