DCI Alison McCoist is up to the oxters in Glasgow's shadiest police unit, with a list of guilty secrets growing longer by the day. Fran Forbes has just bolted from the scene of a gangland massacre with only a shite-stained tracksuit and a memory stick full of crypto-currency to his name. Ally is tasked with looking into this latest underworld rammy and ends up working with some bampots even dodgier than her polis pals. Can she keep Fran from being turned into mince by a Russian OCG and finally free herself from the fankle of police corruption she's caught in? An enemy from Ally's past is determined her story won't have such a happy ending.