"Triangle," a three-member co-ed K-pop group that once dominated the music scene, disbanded overnight after being caught up in an unexpected scandal. Twenty years later, leader Hyunwoo receives an offer to perform on stage as "Triangle" for a chance to make a comeback and sets out to find the other members and seize the opportunity. "Even if war breaks out, we're going on stage today no matter what!" Hyunwoo, who is now a struggling TV personality, Domi, who is married into a rich family, and Sanggu, who is drowning in debt from his solo album releases, somehow reunite and head to the concert hall. But the situation spirals out of control when YGP, the CEO of their former agency with whom they share a bitter history, and Seonggon, the "Prince of Ballad" and former rival of "Triangle," also appear…
Director
Son Jae-gon
Gang Dong-won
Hyunwoo
Um Tae-goo
Sanggu
Park Ji-hyun
Domi
Oh Jung-se
Seonggon
Shin Ha-kyun
YGP
Park Hae-mi
Domi's Mother-in-law
Kang Ki-young
Taepung
RALRAL
Music Broadcast Reporter
Han Kyung-rock
Punk Rock Singer
Gong Myoung
Radio Guest
Jung Soon-won
PD Oh
Kim Ki-cheon
Mr. Ko
Heo Joon-seok
PD Gong
Park Jung-won
Writer Yang
Yang Hyun-min
Officer Kang
KR
