Plot
Though she only had an uncle and grandma as her family, Soona (Ko Eun-a) has grown up without any problems.
After the death of her best friend, she locked her room and became a Hikikomori, starting to talk with an imaginary companion. She exhibited horrible behavior and even attempted to commit suicide in front of her family.
Yunmi (Chae Min-seo) who is the girlfriend of her uncle Sejin (Jeong Yu-seok) and a psychiatrist specializing in Hikikomori noticed instantly there was something secret in the family affairs. She started to investigate and finally opened Soona's room. The situation dashes to an unimaginably horrifying conclusion…
