The film's Korean title is satirically named after the 1872 novel A Dog of Flanders, a European pet story that is very popular in parts of East Asia.
Meanwhile, a young woman who works at the apartment complex (played by Bae Doona) decides to investigate the matter after she starts receiving notices from tenants about the missing dogs.
Park Hyun-nam, the lazy bookkeeper and custodian of the apartment complex, longs to be famous like a bank teller she and her friend Yoon Jang-mi saw on TV who was rewarded for stopping a robbery.
Yun-ju continues to hear barking, and sees the old woman from the roof with her Min Pin, the actual source of the noise.
Eun-sil tearfully tells him she bought the dog with a small portion of her severance pay and planned to give the rest to Yun-ju so he could become a professor.
Shocked, Yun-ju makes up missing dog flyers and takes them to Hyun-nam, who offers to help him, but he gives up his search after nobody, not even the dog-eating janitor, seems to have Baby.
Overcome with guilt after hearing she got fired for spending time looking for dogs, he confesses he was the man she saw throw the Min Pin off the roof.
[1] Despite the fact Bae Doona was new to the Korean film industry, she was recommended to the production company by Bong who loved her "smooth moves like an octopus" and her unpretentious speech patterns.
[5] Lead actress Bae Doona stated in 2019 that the film contained the most memorable scene of her career, in which she is being chased by a homeless man throughout the apartment complex.