The Castle of Cagliostro follows gentleman thief Arsène Lupin III, who successfully robs a casino – only to find the money to be counterfeit. He heads to the tiny country of Cagliostro, the rumoured source of the bills, and attempts to save the runaway Clarisse from the Count Cagliostro's men. Lupin enlists his associates, Jigen and Goemon, and sends his calling card to the Count to get Inspector Zenigata, his longtime nemesis, to the castle. After becoming trapped in the dungeon under the castle, Lupin and Zenigata form a pact to escape and foil the Count's counterfeit operation and save Clarisse from her forced marriage to the Count.
