A Christmas party at a luxury high-rise in Seoul turns into a nightmare when two helicopters collide over the building, starting a deadly fire. Sang-kyung Kim, Sul Kyung-gu, Kim Sang-kyung, Jeong In-gi, Cho Mina, Cha In-pyo, Son Ye-jin, Seol Kyung-gu, Kwon Tae-won, Do Ji-han Added on Netflix 2023-01-10. Youtube Trailer