Kôri no sekai (1999)

Heartthrob Yutaka Takenouchi stars as an insurance investigator, Eiki who becomes enthralled by an icy geology teacher, Tohko, he meets while examining a mysterious death at a girl's high school. Chances are the femme fatale played by Nanako Matsushima may have been responsible for several deaths. Eiki suspects something in Tohko but at the same time, he begins to fall for her.