After episode 30 of "The Wind Across the Blue Sky" aired, social networks immediately "reported" with a series of comments criticizing the character Dang (Doan Quoc Dam) for betraying his wife who loves him wholeheartedly - My Anh (Phuong Oanh).
The scene where Dang fell into the "love trap" of Linh (Lan Phuong) became the focus of controversy, considered a dramatic turning point of the film.
On her personal page, actress Lan Phuong also shared some behind-the-scenes photos. This scene is very private, Lan Phuong humorously wrote. The film only has two characters Linh and Dang, but behind the scenes, there are quite a few crew members standing around to support lighting, camera and sound.

According to the film's development, Dang returned to Quang Ninh to direct a major art program. Linh appeared in time to accompany him from the rehearsal stage to the official performance. Throughout the program, Linh was always by Dang's side to follow, encourage, and share every moment with Dang. When the event ended successfully, the whole team burst into happiness, Linh did not hesitate to hug Dang.
After that, everyone went to celebrate the success of the show, both Dang and Linh drank quite a lot. When the party broke up, Dang returned to the hotel to get documents, Linh followed him with the reason of helping, but instead of waiting in the lobby, she proactively went to his room. Here, Linh closed the door, approached and suddenly rushed into Dang in a drunken state, although he was confused and tried to avoid him. The saying "Don't push your emotions back like that, Dang" sounded like the beginning of the biggest mistake of a man who has ever devoted himself to his wife.
The next morning, when he woke up, Dang was shocked to realize that he had gone beyond the limit. He shed tears in regret, felt violated and guilty towards My Anh. Although he tried to appear calm when going out to eat breakfast with the group, Dang's heavy eyes and disappointed appearance spoke for themselves.

On film forums, many people have declared their back to Doan Quoc Dams character Dang, saying that all reasons cannot justify betrayal.
Although the scene was controversial, it also showed the delicate and emotional acting of Doan Quoc Dam and Lan Phuong, helping to push the film to the climax, opening up a series of complicated developments in the following episodes.