Journalist Sang-jin uncovers the existence of the so-called 'Troll Factory' while investigating an online public sentiment manipulation story, and is confronted with an unbelievable truth.

• Cinematic Moment
• Son Suk-ku
• Kim Dong-hwi
• Kim Sung-cheol
• Hong Kyung
• Lee Seo-hwan
• Choi Deok-moon
• Lee Sun-hee
• Lee Da-wit