The Keeper of Bees. Hazard and Somerset: A Union of Swords, #5

Emery Hazard has pretty much everything under control. He and his fiancé, John-Henry Somerset, are more in love than ever, despite the stress of wedding preparations hanging over them. His business as a private investigator is growing. He's even enjoying time with his growing circle of friends. The only major problem on the horizon is whether or not he and Somers will be dancing at the wedding reception.
When Mitchell Martin shows up in his office, though, everything changes. The year before, Mitchell was abducted and tortured by a sadistic killer known only as the Keeper of Bees. Now Mitchell is convinced that the Keeper has come back, and he wants to hire Hazard to protect him. While Hazard works to keep Mitchell safe, Somers must adjust to changes at work. A spate of new hires has disrupted the Wahredua Police Department, and Somers finds himself locked in a struggle to determine how the department will grow and evolve, with long-term consequences that will affect the town for years to come.
Then a woman is found murdered, and she has been staged and posed in a way that is eerily similar to the Keeper of Bee's former victims. As Hazard and Somers race to prevent more deaths, Hazard fears they are already too late; the Keeper of Bees has been ahead of them the whole time.