When the police refuse to investigate their daughter’s alleged suicide, two computer-illiterate parents decide to design a protest banner. Based on the infamous Miryang case in South Korea which shocked the nation in 2004 and continues to fuel public outrage even today.

When the app is launched, a ghost appears. Developed by four young adults, the app becomes the centerpiece of a livestream where they venture into a supposedly haunted mountain to prove its authenticity—only to meet a grim fate.

Kyung-whan, who's been with the same play team for 15 years, is out to have a get together after the play again tonight. Drinking brings the joy out of everyone but Kyung-whan's wallet is as light as a feather as he's been acting for a long time. However, his pride on acting and the stage is at its highest. Maybe too much. Kyung-whan feels upbeat with all the sweet talk from other members of the crew. And, there he goes again with the preach on acting with the little knowledge he has. While the preach is going on, one of the members' phone rings. It's an ex-member of the crew but now a big time star Nam-hee. Kyung-whan feels uncomfortable after finding out Nam-hee's about to join. He can't say no to it since everybody's excited about Nam-hee's visit and he doesn't want to be the person to ruin it. Kyung-whan gets demoted from the main role to a supporting role with the sudden visit from Nam-hee.

Anonymous and exploitative, a network of online chat rooms ran rampant with sex crimes. The hunt to take down its operators required guts and tenacity.