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.

On a Christmas Eve, a lifeless body of teenage boy is found. The victim’s revenge-driven twin brother checks himself into a juvie to hunt down the suspects.

HONG Gildong is an infallible private detective with an exceptional memory and quirky personality. While chasing the only target he failed to find, he gets entangled in a much bigger…

Ji-woo, an outcast in a prestigious private high school, does not fit in due to different social backgrounds than his well-to-do classmates. One day, he meets Hak-sung, the school’s security…