Yoo-ra suffers from recurring nightmares every night. One day, she reunites with her high school friends: the talented artist Jin-tae, the wealthy and ex-thug In-seok, the affectionate Hye-jin who harbors feelings for In-seok, and Seong-ho, formerly In-seoks errand boy. During their gathering, Yoo-ra brings up the topic of their deceased classmate who took her own life. This revelation stirs unease among the group, and they vehemently deny recollecting the past events. Unable to contain her curiosity, Yoo-ra abruptly leaves to the bathroom to investigate further.---This film intricately weaves together a haunting tale of unresolved guilt and hidden truths within a group of friends. The unsettling atmosphere grips the audience as secrets from the past resurface, leading to unexpected confrontations and chilling revelations. The stellar performances of the cast breathe life into complex and flawed characters, adding layers of tension and emotion to the narrative. As the mysteries unravel, the films engrossing storytelling keeps viewers on the edge of their seats, culminating in a thought-provoking and unsettling exploration of friendship, betrayal, and the lasting impact of traumatic events.