The behind-the-scenes tidbits

Byeong-ki Ahn was the first Korean director to come to China to shoot a domestic film.

● The film creative team is basically run by the Korean team led by director Byeong-ki Ahn, and all from the director to photography, editing, lighting, music and special effects are completed by the Korean team.

● The film broke the investment record of domestic thrillers.

● The film became the first horror film released in China.

This film is the first thriller starring Mei Ting.

● This film is the first time that Guo Jingfei has played a leading role in the film, made a thriller for the first time and cooperated with a foreign director for the first time.

There is an action scene at the door of the bedroom. The husband who wanted to break into the house was stopped by his wife. Wu Chao and Mei Ting were both too deep, which once caused Wu Chao's arm to be pinched by the door.

Mei Ting revealed that after watching the movie, he "closed the cupboard door as soon as he got home".

● The film side specially notified the parents of children actors in advance before releasing the poster, and did not put children's stills online. Considering the horror scale of the film, the film also suggested that parents should not take the actors themselves to the movies after the film was released, so as not to cause psychological harm. To this end, the film specially edited a set of relaxed production tidbits for the two children as a souvenir.