Long Weekend

As the group of friends, including Nam and Thongsook, spend the night on the cursed island, they unknowingly unleash the evil forces that reside there. Thongsook, who had previously been attacked by ghosts, is left alone in the sanctuary, where he is tormented by the malevolent spirits. The group's decision to ignore the boatman's warning and visit the sanctuary, combined with Thongsook's presence with the amulet, may have triggered the evil forces, leading to Thongsook's disappearance.