In the propulsive if schematic latest from Watson (The Language of Kindness), three female doctors in present-day London find their friendship and their ethics tested when they’re confronted with a secret from their past. Olivia, the perfectionist, is a cardiothoracic surgeon, while Laura works as a doctor on a helicopter rescue team and Anjali is a general practitioner. When Olivia’s teenage daughter, Freya, attends a party with Laura’s son, Rudy, another boy named Joe Duggard falls down a flight of stairs and sustains brain damage. With Joe in a coma, the women try to guard their children’s futures. Laura’s position on the hospital’s ethics committee becomes particularly thorny, as she’s empowered to determine whether Joe will be kept on life support or the children will face involuntary manslaughter charges. The situation echoes a drug-fueled party during the women’s med school days, when a classmate was accidentally killed during a brawl and they fled the scene to avoid being implicated, and they argue now over who was at fault. Watson’s tendency to withhold key information can feel gimmicky, but she shines in her portrayal of medicine as an imperfect blend of art, science, and emotion. Fans of medical fiction will admire this.