An explosive contemporary drama, Harmonium details the collapse of a seemingly ordinary Japanese family. For Toshio, his wife Akie, and their younger daughter Hotaru, life is quiet and consistent. Life carries on as usual until Toshio hires the mysterious Mr. Yasaka, an old acquaintance dressed in white who has just been released from prison. When Mr. Yasaka moves in with the family, their lives change. Director Koji Fukada melds the popular Japanese genre of family drama and a thrilling narrative into an innovative film.