Detective Inspector Michael Angel and his team of regulars are searching for a serial killer on the loose in the Yorkshire town of Bromersley. The available clues are as sparse as they are puzzling: A character in early Roman attire is observed at every murder and a laurel leaf is left on every corpse. DNA evidence links a woman of oriental origin to the murders but this profile doesn't fit any of the suspects. The investigations become more mystifying as Inspector Angel races against the clock to find the killer. Can he prevent further bloodshed?