In the neon-drenched streets of Las Vegas in 2000, two detectives battle a crossbow-wielding serial killer obsessed with the supposedly cursed novel The Yellow Crown, racing to uncover why he hunts only those sharing a specific surname.

Detective Emile Sauveterre loves three things in his life: working homicide in the LVMPD, his alter ego as an aspiring stand-up comic, and ignoring his older sister for the past ten years thanks to the family trauma she caused.

But his life is turned upside down after a string of murders that all have one thing in common: the victims' last name. He and his partner, Koa Kalani, engage in car chases across the streets of Vegas, a gunfight at a high stakes poker game, a cat-and-mouse hunt in the city's underground flood tunnels, and a final showdown with the killer at a new resort construction site.

All of this leads back to a mysterious novel entitled The Yellow Crown, that the killer believes wields an otherworldly cosmic power that he hopes to unleash, with him reigning as the new King.