Huddled in a doorway, in a blonde wig and my best Pretty Woman outfit, I'm already soaked to the skin. Any minute now, a car will pull up and the occupant will ask me how much I charge for sex. As downward spirals go, this is bad. But I'm not here because I'm reduced to turning tricks for a living. I'm here to catch a killer...

Throwaways - that's the word they're using for the Glasgow sex workers who've gone missing. But two people do care and Nancy Kerr and Tommy McIntyre won't stop until they discover the truth; even if it gets them killed.