Domestic Animals. Hazard and Somerset: Arrows in the Hand, #3

Sometimes, the most dangerous animals are the ones you let inside. When a man hires Emery Hazard to track down a teenager who, he claims, robbed him, Hazard isn't convinced. The story has holes in it, and the client seems eager-too eager-to keep the authorities from getting involved. But Hazard is willing to play along; he suspects something much darker is going on, and he wants to know what it is.
Then his husband, John-Henry Somerset, connects the boy in question to an ongoing suspicious death investigation, and both men realize they've stumbled upon something much more complicated. There are too many loose threads: missing money, stolen jewelry, a husband back from the dead, and a string of violent assaults on men paying for sex. And there are too many people with their own agendas. After Hazard's client turns up dead, though, the pressure is on.
The killer isn't done yet, and the closer Hazard and Somers come to unearthing the connection between the victims, the greater the danger. They find themselves in a race to uncover the truth before another victim is claimed-and, if Somers is really lucky, in time for him to plan the perfect Valentine's Day.