THE OTHER HALF

Class lines morph into clash lines when British aristocrats and police face off in this dead-on debut.

On the night before an Instagram influencer is found dead, Rupert Beauchamp, heir to a baronetcy, holds a tawdry black-tie 30th birthday bash at a London McDonald's, where guests wash down fast food with champagne and coke. The dead woman turns out to be Rupert's girlfriend, Clemmie O’Hara, whose body is discovered on Hampstead Heath by DI Caius Beauchamp (no relation to Rupert, but it's an intriguing coincidence that eventually explains a lot about Caius). Clemmie's death is convenient for the nasty Rupert because he's always loved Nell Waddingham, whom he can't marry because she's not posh enough. Nell works in publishing and adores classic novels, especially Jane Austen's, which she loves to read and post about. She’s Vassell’s most perfectly wrought character and, along with Caius, one of the few likable ones. On a recent trip to Greece with Rupert and Clemmie, she experienced a terrible act of violence (only hinted at later in the book) that she can't seem to understand or process. Caius is clear-eyed about what happened to her and wants justice for her and Clemmie. He's not afraid to set his sights on Rupert, even though his elite-enamored boss tells him to back off. Rupert, like all the other aimless upper-class millennials in this novel, can buy his way out of pretty much any criminal behavior, but will he get away with murder? There are plenty of other people in Clemmie's circle with strong motives, and Vassell serves them up with gimlet-eyed precision. This is a sturdy police procedural whose plot is sometimes knocked off kilter by Vassell's frequent sendups of her morally bankrupt characters, but the forthright Caius is a beacon of justice who makes this debut shine.

Race and privilege light the fuse in this classics-laced whodunit.