In an insurance company, Se-young, who is an outsider, has a power to see people’s past and read their minds. Mr. Park, Se-young’s boss, assumes that she has some kind of special power, decides to test her ability. At very late night when everyone has gone home, Mr. Park brings Se-young to a storage room where there are full of case reports. Among them, Mr. Park picks three doubtful cases. He asks Se-young to tell him what exactly happened. Se-young, who senses some dark aura wandering around him, tells the story of each case. Every time Se-young finishes each case, the dark aura gets darker and bigger and Se-young tries to warn Mr. Park about it. Would Mr. Park able to escape from the dark aura?