Appointed by their professor, a group of five senior university students are summoned to the ancient mansion owned by the distinguished ML.Salukjit, an elderly aristocrat who greets them with her eccentric behavior. Just as they contemplate whether to depart or remain, ML.Salukjit begins to strike fear into their hearts and unveils her diabolical abilities, unleashing chaos upon them. This is the chilling plot of the movie "Devil School".