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.
1941
2020
2015
1981
2022
1984
2021
1999
1910
2016
1985
1997
2005
2006
2007
2019
2004
1992
