On New Year's Eve at the end of one of the hardest years in history, hundreds of revellers shoot their guns into the air in time-honoured LA tradition. But as the rain of lead comes down, a man is shot dead in the middle of a crowded street party.

Detective Renee Ballard soon connects the bullet to an unsolved cold case last worked by legendary ex-LAPD detective Harry Bosch. As they investigate where the old and new cases connect, a new crime shatters the night shift. The Midnight Men are a pair of violent predators who stalk the city during the dark hours, and will kill to keep their identities secret.

In a police department shaken to the core by pandemic and protests, both cases have the power to save Ballard's belief in the job - or take everything from her...