Gosa 2 plot
"Who will pass the deadly test."
Se-Hee is haunted by the appearances of her stepsister Tae-Yeon, a top swimmer who committed suicide two years earlier. During the summer holidays, Se-Hee goes to a study camp where she can prepare for the next school year. On the first night she finds a riddle written on her desk and moments later she sees the corpse of a girl hanging upside down. Then suddenly the TV monitors come on and the students see another friend of theirs being crushed by a motorbike in the school hallway. Every time a question or riddle isn't answered correctly, someone has to pay a gruesome death.