Himitsu (2010 TV Series)
Himitsu (Japanese: 秘密) is a 2010 Japanese television drama series broadcast by TV Asahi. The series, which aired from October 15 to December 10, 2010, is based on the 1998 novel of the same name by Keigo Higashino, a work that previously won the Mystery Writers of Japan Prize.

Plot
The story follows Heisuke Sugita (played by Kuranosuke Sasaki), whose life is upended after a tragic car accident involving his wife, Naoko (Hikari Ishida), and their daughter, Monami (Mirai Shida). While both are hospitalized, Naoko dies from her injuries. However, Heisuke soon discovers that the spirit of his wife has taken residence within the body of his surviving daughter, Monami. The series explores the complex emotional and psychological consequences of this supernatural occurrence on the family.
Cast
The main cast features Kuranosuke Sasaki as Heisuke Sugita and Mirai Shida as Monami Sugita. Hikari Ishida portrays Naoko Sugita. Supporting cast members include Yuika Motokariya, Satoshi Hashimoto, Shoko Ikezu, Takeshi Masu, Tantan Hayashi, Ryo Ryusei, Keiko Horiuchi, and Mitsuru Fukikoshi.











Production and Reception
The series was directed by Akihiro Karaki, Nobuyuki Takahashi, and Ken Higurashi, with a screenplay by Noriko Yoshida. It aired in the Friday 11:15 PM time slot. Over its nine-episode run, the series achieved an average viewership rating of 9.1% in the Kanto region, according to data from Video Research, Ltd.
Episode Ratings
| Episode | Date | Ratings (Kanto Region) |
|---|---|---|
| 01 | 10/15/2010 | 10.1% |
| 02 | 10/22/2010 | 8.8% |
| 03 | 10/29/2010 | 8.8% |
| 04 | 11/05/2010 | 8.8% |
| 05 | 11/12/2010 | 9.7% |
| 06 | 11/19/2010 | 7.9% |
| 07 | 11/26/2010 | 7.7% |
| 08 | 12/03/2010 | 9.5% |
| 09 | 12/10/2010 | 11.2% |
| Average | - | 9.1% |