Joseph Archer has been spending his days as a live-in servant for the family who bought his family's ancestral home, and he is living peacefully. His uneventful days come to an end when he meets a Catcher named Madeleine, who has come to catch the dreams of young master Thomas. In a fit of temper, Joseph touches the Catcher's hood, which begins his own transformation into being a Catcher. Through his travels, Joseph tries to understand his new world, learning the secrets of the Catcher's trade and the motivations of Madeleine, who is hell-bent on finding a cure for her affliction.