An elite drug squad detective forced to drug by someone mysterious reveals the whole story of 20 years of friendship and connection with the death of a friend.

Ji Sung, Jeon Mi-do, Kwon Yul, Kim Kyung-nam, Jung Yoo-min, Jung Soon-won, Yoon Na-moo, Seo Yi-ra, Jeong Jae-kwang, Cha Yeob, Lee Kang-wook, Cho Han-gyeol, Kim Min-ju, Yoo Hee-je, Park Keun-rok, Ryu Hye-rin, Park Jung-pyo, Yoon Sa-bong, Moon Sung-keun, Han Hyeon-jun