From the cover flap:

"In a city of lives separated by walls, a city of flash and silence, light and dark, veteran NYPD detective James Sakura feels it all: the hurt, the loneliness, and the horror. An intense, soft-spoken Japanese-American homicide cop, Sakura is being called into the most frightening case of his career. Dead bodies are being found-- bloodless, naked, and posed with the giant wings of white birds. A killer is turning his victims into angels."