Triangle - Season 1 Episode 1 Jang Dong Soo is a reckless investigator who will do anything to take down a kingpin mobster, even if it means heading back to his hometown and crossing paths with his past. TitleTriangle - Season 1 Episode 1 Year2014 GenreDrama CountrySouth Korea StudioMBC CastLee Beom-soo, Kim Jae-joong, Yim Si-wan, Oh Yeon-soo, Baek Jin-hee, Park Ji-yeon CrewChoi Jung-kyu (Director), Choi Wan-gyu (Screenplay) Alternative Titles三角谜情 Keyword First Air DateMay 05, 2014 Last Air dateJul 29, 2014 Season1 Season Episode26 Episode Runtime60:14 minutes QualityHD IMDb: 6.88/ 10 by 4.00 users Popularity26.494 LanguageKorean Download 4K Download 4K Download 4K Download HD Download HD Download HD Download SD Download SD Download SD Download