Four people go missing in Beijing, why? All of them idols, whose disappearances warrant a high-profile investigation, why? A message hidden under the guise of a ransom, why? Oh Sehun is the only one of the four missing idols that had a video sent to his company, why? Zitao knows exactly why.  

Recently, rumors of a dangerous new phenomenon called "idol terrorism" have begun to spread. One idol, Oh Sehun, doesn't believe these rumors. That is, until he himself becomes a victim.