Goodbye 2021, Hello 1987 S01 E01

Kim Dong-wook (as Yoon Hae-jun) Jin Ki-joo (as Baek Yoon-young) Seo Ji-hye (as Lee Soon-ae) Lee Won-jeong (as Baek Hee-sub) Kim Jong-soo (as Yoon Byung-gu) Park Soo-young (as Lee Hyung-man) Lee Gyu-hoe (as Baek Hee-sub (2021)) Kim Jung-young (as Park Ok-ja) Lee Ji-hyeon (as Lee Soon-ae (2021)) Choi Young-woo (as Baek Dong-sik) Jeong Ga-hee (as Lee Joo-young) Jeong Sin-hye (as Lee Chung-ah) Ji Hye-won (as Ko Mi-sook) Hong Na-hyeon (as Lee Kyung-Ae)

time travel investigation murder romance death 1980s science fiction