Triangle

Jang Dong-soo, Jang Dong-chul and Jang Dong-woo are three brothers who got separated at a young age after their father died and their mother left them. They meet again twenty years later, but unaware of their blood ties, their ill-fated paths converge on casino territory where they find themselves at odds with each other. Eldest brother Jang Dong-soo (Lee Beom-soo) followed in the footsteps of his father and became a detective. His greatest hope is to find his two brothers again and for the siblings to finally be reunited. Due to their different approaches to crime solving, Dong-soo clashes with Hwang Shin-hye (Oh Yeon-soo), a profiler who recently returned to Korea after studying overseas. They eventually gain a mutual respect for each other as colleagues, but find themselves in conflict once again when they learn that the gangster they're after is Dong-soo's own brother, Dong-chul.[cont.] [About] Triangle is a 2014 South Korean television series, starring Lee Beom-soo, Kim Jae-joong and Im Si-wan. It aired on MBC from May 5 to July 29, 2014 on Mondays and Tuesdays at 22:00 for 26 episodes.[1][2] Triangle was directed by Yoo Cheol-yong and written by Choi Wan-kyu, who previously collaborated on the gambling dramas All In (2003) and Swallow the Sun (2009). Separated in childhood by unfortunate circumstances, three brothers meet twenty years later, unaware of their connection to each other. [Source: Wikipedia]