When Yoo-mi seeks out her mother's friend at a hotel to drop off her younger sister, she falls into unexpected mystery and horror.
as Yu-mi
as Gyeong-seon
as Lee Ye-rin
as Yoon Ji-yoo
as Choi Yoon-hee
as Oh Seok-hyeon
as Seo Eun-gyeong
as Middle School Student
