A group of senior sleuths passionate about solving cold cases get plunged into a real-life murder mystery in this comic crime caper.

In 1976, as Argentina descends into violence and chaos, a world-weary English teacher regains his compassion for others thanks to an unlikely friendship with a penguin.

The narrative unfolds in the 14th Century, when the European nations vie for supremacy within the Holy Roman Empire. The ambitious Austrian Empire, desiring more land, invades neighbouring Switzerland, a…