Historical evocation of Ludwig, king of Bavaria, from his crowning in 1864 until his death in 1886, as a romantic hero. Fan of Richard Wagner, betrayed by him, in love with his cousin Elisabeth of Austria, abandonned by her, tormented by his homosexuality, he will little by little slip towards madness.

The 19th-century King of Bavaria becomes involved in scandal. Conspired against by his own ministers, he died in mysterious circumstances which for reasons of state were attributed to his own madness.