A city torn apart. It is 1969 and Glasgow has been brought to its knees by a serial killer spreading fear throughout the city. The Quaker has taken three women from the same nightclub and brutally murdered them in the backstreets.

A detective with everything to prove. Now, six months later, the police are left chasing a ghost, with no new leads and no hope of catching their prey. They call in DI McCormack, a talented young detective from the Highlands.

But his arrival is met with anger from a group of officers on the brink of despair.