The story is centered, once again, around the Four Musketeers and King Louis of France. The narration of the story takes place between 1660 and 1667 during the ascension of the young King Louis XIV to the throne of France.
The titular character, the man in the iron mask, is supposed to be the twin brother of Louis XIV himself who was imprisoned with his identity concealed by an iron mask by his twin brother. Aramis, the musketeer, tries to create a plan to replace King Louis with Philippe in order to create a more susceptible king who can rule the country. But when his plan begins to backfire, more than just Aramis will pay for his avarice.
