Belgium, 1950. Nineteen-year-old Prince Baudouin is still searching for an identity within his family when his authoritarian father, Leopold III, is forced to abdicate in disgrace over accusations of Nazi collaboration. The shy, emotionally unprepared teenager is pushed onto the throne, torn between family loyalty and political demands. Against the backdrop of crumbling European monarchies, Congolese independence, the Cold War, and a country split over abortion, Baudouin longs to make his own choices. Growing up means breaking free from the powerful figures around him. The Spanish Fabiola de Mora y Aragón is the first to see not the king but the lonely young man behind the crown. But the more power Baudouin gains, the more he imposes it. Torn between power and responsibility, he must learn how to become a better man than the father who raised him.

King of Hearts is a universal, character-driven historical drama about power, faith, family and the burden of inheritance.