On the Line (2021)


The first real crime action film in Korea that deals with voice fishing material, “On the Line” was created through the thorough preliminary research and imagination of the production team, including directors Kim Sung and Kim Gook. The representative from Nestle, who was in charge of the planning and production of “On the Line,” said, “We looked for actual voice phishing cases and recent phishing methods and tried to include the maximum amount of real-life crime situations. It’s a great way to show that you’re not alone.

It’s a great way to show that you’re not the only one who can do it,” he said. “While planning and preparing for the film since 2016, the voice phishing cases have continued to evolve and develop. This is the first time that I have seen this kind of movie. The first step in the planning process was to meet with the Intelligence Crime Unit, which is at the forefront of the fight to the death against voice phishing criminals. Through preliminary material research interviews with the Intelligence Crime Investigation Unit, we were able to include detailed information about specific cases, voice phishing organizations, and systematic extraction processes in the film. In addition, the production company said, “We did a lot of new research on how hackers from China create fur and how they operate, looking for white hackers in the country. In addition to the above, there are also a number of bank officials. In addition to this, the team conducted a thorough preliminary investigation with bank officials, the Financial Supervisory Service’s voice phishing team, and papers.

In the process, director Kim Song, director Kim Gook and the production team experienced difficulties in obtaining concrete information about the home of voice fishing. “The difficulty was that there was no video or photographic documentation of the home base. Even if there were, they were taken in secret, so the quality was either very poor or they were taken after many people had left, so they didn’t fit the film. This is also where the detail of the art director comes in. Here, too, the art director added details. “I remembered for the first time the empty space of a large shopping center where desire is expressed in consumption. He also added details to the “call center,” the home of voice phishing in the film, to add a sense of dynamism.

Thus, through interviews with various experts, articles, books, and interviews with victims of actual cases, the film “On the Line” is expected to become a full-fledged anti-voice phishing film by realistically depicting the huge and detailed voice phishing crime.


  • Movie: On the Line
  • Native Title: 보이스
  • Also Known As: Voice , Boiseu
  • Director: Kim Gok, Kim Sun
  • Genres: Action, Mystery, Crime
  • Country: South Korea
  • Release Date: Sep 15, 2021
  • Duration: 1 hr. 49 min.
  • Content Rating: 15+ – Teens 15 or older
  • Stars: Byun Yo Han, Kim Mu Yeol, Kim Hee Won