I just watched Japanese Movie "Suspect X", a continuation of popular drama "Galileo" with hubby and was really satisfied and touched with the plot and ending! I just remembered that "Galileo" also had a one episode special titled "Episode Zero" which premiered in Japan on 4 October 2008 together with the opening of the movie.
The special is set 3 years prior to the drama series, with the story being related to a murder case that was partly referenced in the original show. Detective Kusanagi is looking to solve a murder mystery, and he gets back in touch with his former badminton teammate, the brilliant professor Yukawa Manabu. Those who have watched the movie and are craving for more Galileo action like me can watch the special at: http://www.mysoju.com/galileo/.