Teach You a Lesson
2026 · Action & adventure · Drama
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TV series / 2014
Triangle
Episode directors
Choi Jung-kyu
When three brothers were very young, they lost their parents. The three brothers were then separated and lived apart for 20 years without knowing of each other. They then meet again unexpectedly and begin their relationship as brothers. Jang Dong-Soo (Lee Beom-Soo) is the oldest brother. He works as a detective. Jang Dong-Woo (Siwan) is the youngest brother. He was adopted by a rich family when he was a baby and became Yoon Yang-Ha. He …
The story
When three brothers were very young, they lost their parents. The three brothers were then separated and lived apart for 20 years without knowing of each other. They then meet again unexpectedly and begin their relationship as brothers. Jang Dong-Soo (Lee Beom-Soo) is the oldest brother. He works as a detective. Jang Dong-Woo (Siwan) is the youngest brother. He was adopted by a rich family when he was a baby and became Yoon Yang-Ha. He is cynical and cold.
The seasons
Season 1
Season 1
Season details
A synopsis is not available yet.
Cast
Kim Jae-joongHeo Young-dal / Jang Dong-chul
Yim Si-wanYoon Yang-ha / Jang Dong-woo
Lee Beom-sooJang Dong-soo
Oh Yeon-sooHwang Shin-hye
Baek Jin-heeOh Jung-hee
Park Ji-yeonSung Yoo-jin
Kim Byeong-okKo Bok-tae
Kim Hye-eunKim Ok-kyung
Moon Jung-hyunMin Su
Hong Seok-cheonMan-kang
Kim Ji-youngOh Jung-hee's grandmother
Park Hyo-juKang Jin
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