Gyeong-ah works as a caregiver and lives alone. The only one she can rely on is her daughter, Yeon-su, but it's hard to see her after she moved out on her own. Meanwhile, Yeon-su, who is suffering from her ex-boyfriend, Sang-hyun, argues with him again and visits her mother’s house. After Yeon-su left, Gyeong-ah receives a shocking message from a stranger.

《花开时想月》是韩国KBS2于2021年12月20日起播出的月火连续剧，由《月桂树西装店的绅士们》、《监狱医生》的黄仁赫导演与金柱熙编剧合作打造。此剧讲述朝鲜禁酒令时期，四个“越线”的年轻人的友情和爱情以及成长故事。