According to Nielsen Korea, the final episode of "Filing for Love" (Secret Inspector) achieved a viewership rating of 9.7%, the highest since the film aired. This achievement helped the film lead the broadcast time slot on all channels, including public television.
In the final episode, the love story between Joo In Ah (Shin Hye Sun) and Noh Ki Jun (Gong Myung) officially closes in a happy direction. After a series of upheavals related to Haemu Group's internal affairs, the two choose to continue to accompany each other instead of rushing towards marriage.
Many viewers đánh giá this is a cách xử lý phù hợp with Joo In Ah's tính cách. Throughout the film, the character is xây dựng as an independent, lý trí person and mang nhiều tổn thương from family. Therefore, In Ah's not immediately accepting to marry Ki Jun is considered a reasonable choice and consistent with the psychological development journey of the character.
One of the scenes that received many positive feedbacks was the moment In Ah gradually integrated into Ki Jun's family. According to viewers, this is a more meaningful detail than a wedding or proposal, because it shows that the female lead has finally found a place to belong to after many years of living in seclusion.
Besides the compliments for the ending of the main couple, the final episode is still entangled in controversy. A part of the audience expressed regret that Noh Ki Jun did not make significant progress in his career despite being a major contributor to helping Haemu overcome the crisis. From an elite personnel of Audit Team No. 1 being transferred to Team 3, Ki Jun almost had no changes in his job position when the film ended.
The handling of the character Secretary Park Ah Jeong (Hong Hwa Yeon) also caused mixed opinions, because the handling direction was too lenient. Or the relationship between In Ah and her biological father also left regret when the two father and son had not had time to reconcile before he passed away.
However, it is undeniable that "Secret Inspector" has maintained stable performance throughout the 12 episodes. The work scores points thanks to the balance between office elements, humor, romance and the mature stories of the characters.
In particular, the chemical reaction between Shin Hye Sun and Gong Myung is considered an important plus point to help the film maintain its appeal until the final episodes. The two are praised for creating a natural, empathetic couple and strong enough to keep viewers captivated throughout the broadcast journey.