A body found in the trunk of a Rolls Royce seems to have connections with the mob and leads Bosch and his investigation to Las Vegas. It's Harry Bosch's first homicide case after returning from involuntary leave following his actions concerning Lt. Pounds. The car was found by a veteran beat cop near the Hollywood Bowl. Harry arrives during a concert and is comforted with a difficult decision. 

Do he process the crime scene given the concert goers or do he move the “show” to an LAPD building.  

Deciding to move the crime scene, Bosch is second-guessed by his new Lt. Billets. But after Harry informed Lt. Billets of the extenuating circumstances, Lt Billets does something rare in Harry’s police life, apologies for second-guessing his decision.  

Per LAPD prodigal, Bosch notifies an on-call Detective Dom Carbone from OCID, the Organized Crime Investigation Division of the investigative finding thus far.

After Bosch finished telling Carbone of the investigative finding, Carbone oddly took a pass on the investigation that appeared to have a connection with the mob.