A hilarious twist on a traditional medieval fairy tale, Princess Ida, or Castle Adamant tells the tale of the titular Princess Ida and is partially based on the 1847 poem The Princess by Alfred Lord Tennyson. Prince Hilarion has been waiting for his wedding day for twenty years. He is about to meet Princess Ida to whom he was betrothed, as a baby. Unfortunately, Princess Ida has decided that she does not want to honor the commitment, and has, instead, gone off and started a women’s university. But Hilarion does not give up hope! In an attempt to woo her, Hilarion, dresses up as a maiden and sneaks into the women’s compound, accompanied by his friends, Cyril and Florian, who are forced to dress up as well. Once the “maidens” are in the compound, various girls attending the college discover their secret. These girls attempt to keep their knowledge from Ida, but eventually Ida discovers and apprehends the intruders. Will violence erupt in their confrontation, or can a peaceful agreement be made?