Masquerade — Ending Explained

After the King is poisoned and falls into a coma, the stand-in arrangement becomes permanent. Ha-sun goes from following Heo Gyun's instructions to making decisions of his own. These decisions favor ordinary people over the aristocratic factions, and they disturb the court. The film's main twist is emotional rather than a plot trick: the fake king turns out to be the true king in spirit, and the people around him, Heo Gyun included, start to prefer him to the real monarch.

Because the story is set inside a gap in the historical record, the imposter's reign can't become official history. When the real King recovers, Ha-sun's rule has to end, and his humane reforms become an unrecorded \"what if.\" The film's tragedy is that the best king Joseon had in those days officially never existed. That's the hidden meaning of the framing device: the missing days hold the reign that history doesn't remember.

Political allegory: Many viewers read the film as a commentary on modern leadership. It came out in a Korean election year, and the ideal of a humble, people-first leader was read as a contemporary wish.

Theatre about theatre: Because Ha-sun is a performer, the film can be seen as saying that all authority is a performance, and that a \"king\" is someone everyone agrees to treat as one.

Romantic historical revisionism: More skeptical readings see the film as comforting fantasy. It rewrites a controversial historical king through an idealized double rather than dealing with the real, complicated politics of the time.