First air date: Jan 29, 2021
Episode duration: 00h 40m
Rating: (8.7) based on 10 votes
Status: In production Seasons: 3
Episodes: 32
Starring: Park Ji-yoon, Jang Do-yeon, Lee Eun-jae, BIBI, Choi Ye-na
Created by: Jeong Jong-yeon
Genre: Reality,
Mystery
A text message arrives from a dead friend. Since then, mysterious cases take place in a high school, which are intricately tangled with each other. Five mystery club members get together to reveal the truth of the mysterious incident at school.
