Returning to England, Susan Ryeland is reluctantly drawn into a new Atticus Pünd mystery, this time written by a new, young writer. 'Pünd’s Last Case" is a story set in 1955, in an exotic villa in Corfu – but the identity of a real killer is hidden in the text, and once again Susan is going to find herself in grave danger.
Thomas Becker (Matthias Koeberlin), son of a powerful building contractor (Heiner Lauterbach), is shot on New Year's Day. Commissioner Barbara Falck (Sabine Winterfeldt) and colleague Christian Krämer (Wolf Danny Homann) start the investigation and suspect a connection with the collapse of the "cube", in which a young cleaner was killed. Was the murder of Thomas an act of revenge against the Becker and Sons company?
Axel is unemployed and works illegally in an apartment. The young Linnéa who lives there has completely isolated herself from the outside world. Why does she stay locked up?
Each episode re-examines a single crime case where unanswered questions still remain. Through original interviews those involved, the evidence is dissected and new theories are presented in a quest to uncover the truth.