Trick Roller by Cordelia Kingsbridge

It’s the height of summer in Las Vegas. Everyone believes the serial killer Seven of Spades is dead—except Levi Abrams and Dominic Russo—and it’s back to business as usual. For Levi, that means investigating a suspicious overdose at the Mirage that looks like the work of a high-class call girl, while Dominic pursues a tough internship with a local private investigator. The one bright spot for both of them is their blossoming relationship.

But things aren’t so simple. Soon Levi is sucked into a dangerous web of secrets and lies, even as his obsession with the Seven of Spades intensifies. Dominic knows that Levi isn’t crazy. He knows the Seven of Spades is still out there, and he’ll do anything to prove it. But Dominic has his own demons to battle, and he may be fighting a losing war.

One thing is certain: the Seven of Spades holds all the cards. It won’t be long before they show their hand.