TriangleSeason 12009 · 11 episodesEpisodes1Who killed the girl?The series starts with the murder of a 10-year-old girl in 1984. 15 years later, after the case goes unsolved and passes the statute of limitations, a doctor named Goda Ryoji suddenly quits from his hospital and eventually becomes a detective.2Letter from the past3The suspect4Shocking confession5The obliterated truth6The remorseful killer7Shanghai night, the bond that tears8Alibi9The other side of truth10Those who bear the cross11Final