With his childlike circus-performer girlfriend Su-ni, he kidnaps a powerful pharmaceutical executive, Kang Man-shik, whom he believes to be a top ranking extraterrestrial able to contact the Andromedan prince during the upcoming eclipse.

Reading through the journals, the executive discovers Byeong-gu's traumatic past: his father was a coal miner who lost one of his arms due to his dangerous work and was killed by his wife when he attempted to attack her and his son.

As the credits roll still photographs recap the entire journey of Byeong-gu's life, focusing instead on the beautiful, happy moments of a young boy and man with his father and mother and Su-ni.

[3] He enjoyed it, but was disappointed with the lack of depth of the Annie Wilkes character, and accordingly decided that if he made a film about a kidnapping, it would be staged from the point of view of the kidnapper.

[3] Later, Jang stumbled across a crank website accusing actor Leonardo DiCaprio of being an alien who wanted to conquer Earth by seducing all of its women, and he decided to combine the two concepts.

[3] In May 2020, it was announced that CJ Entertainment would be producing an English-language remake of the cult film with film-making duo Ari Aster and Lars Knudsen, whose credits include Midsommar and Hereditary.

[4][5] In February 2024, it was reported that Yorgos Lanthimos was set to direct the remake, with Aster producing alongside Ed Guiney and Andrew Lowe from Element Pictures.

[6] In May 2024, Focus Features acquired all rights outside South Korea to the project, which had since been retitled to Bugonia, starring Emma Stone and Jesse Plemons.