New York Times Bestseller: A retired cop hunts for a female serial killer no one would suspect in this "first-rate thriller . . . as good as you can get" ( The New York Times). By day, she's a middle-aged secretary no one would look at twice. But by night, dressed in a midnight-black wig, a skin-tight dress, and spike heels, she's hard to miss. Inside her leather shoulder bag are keys, cash, mace, and a Swiss Army knife. She prowls smoky hotel bars for prey. The first victim—a convention guest at an upscale Manhattan hotel—is found with multiple stab wounds to the neck and genitals. By the time retired police detective chief Edward Delaney hears about the case from an old colleague, the Hotel Ripper has already struck twice. Unable to resist the puzzle, Delaney follows the clues and soon realizes he's looking for a woman. As the grisly slayings continue, seizing the city in a chokehold of panic, Delaney must stop the madwoman before she kills again.