A group of college friends, including Do Hyun, have forgotten their childhood memories and are living separate lives. When they meet Jin Ho, who lost his parents in a childhood accident, they become his friends. Do Hyun becomes fascinated with Jin Ho's hypnosis treatment for his trauma and tries it himself. As a result, he and his friends start experiencing strange occurrences, recalling memories of Seung Min, a deceased friend from their childhood at a nursing home.
The Hypnosis
A young boy, still reeling from the tragic loss of his parents, finds comfort in hypnosis therapy, while a college student becomes fascinated by Jin-ho's journey and decides to try hypnosis for himself.