Season
- Season 1 2009-01-06
Episode
- Episode 1: Who killed the girl?
- Episode 2: Letter from the past
- Episode 3: The suspect
- Episode 4: Shocking confession
- Episode 5: The obliterated truth
- Episode 6: The remorseful killer
- Episode 7: Shanghai night, the bond that tears
- Episode 8: Alibi
- Episode 9: The other side of truth
- Episode 10: Those who bear the cross
- Episode 11: Final
Triangle Season 1 Who 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. In 2008, he meets Sachi, a traveling artist in Paris, and shortly after Goda's return to Japan, he becomes involved in the expired murder case when another detective receives an anonymous phone call.
