The body of a prostitute is discovered in Glasgow's Queen Street Station, sparking a murder hunt that focuses on the city's seamier side. But when the body of a young nurse is found dead in a private clinic, with her corpse positioned in an identical way to that of the first victim, DCI Lorimer and psychologist, Solomon Brightman, must decide if this is the work of a serial killer. Once again, Gray takes the reader on a journey through the streets of Glasgow, this time weaving the very fabric of both the city with the wilds of the Scottish Outer Hebrides in her tale.