According to the mafia script

In the trunk of a Rolls-Royce, Tony Aliso, the owner of a Hollywood film studio and a keen card player, is found with two bullets in his skull. Apparently, he became a victim of a mafia raid. To investigate the... version of murder for gambling debts or fraud, Los Angeles police detective Harry Bosch heads to Las Vegas. During the investigation, it turns out that shortly before the filmmaker's death, he was seen at a poker table with a certain Eleanor Wish - a former FBI agent, a former convict… and the former love of Harry's life. Suddenly, this case becomes very personal for Bosch, and now he has to "keep his cards close to his chest." Meanwhile, he gains more enemies, and it's not just thugs from Vegas, but also someone from the internal affairs department of the police. But when has danger ever stopped Bosch?