The Killing Floor

After a motorist swerves to avoid hitting an animal in the road, he accidentally discovers a decomposed corpse sans head and hands in the garden of a house in one of Glasgow's more prestigious suburbs. For the Glasgow's P division, the first task is to identify the body - which eventually turns out to be that of one Pam McArthur, a social worker with a talent for making enemies.
Following a trail that she left behind, the Glasgow Police Division P begins to uncover the secret that got Pam McArthur killed. The investigation leads them to an East End housing project, and when Wayne Petty, one of the chief suspects, is murdered after talking to the police, the P Division feels the urgency to wrap this one up. Murder, blackmail, and corruption lead the police to uncover a massive thirty-year-old fraud that, if made public, would shake the city down to its foundations.