The body of a teenage boy is found weighted down in a lake. Karin MĂŒller, newly appointed Major of the People's Police, is called to investigate. But her power will only stretch so far, when every move she makes is under the watchful eye of the Stasi. Then, when the son of MĂŒller's team member goes missing, it quickly becomes clear that there is a terrifying conspiracy at the heart of this case.