Mystery always creates a high degree of anxiety and tension by attracting people’s attention about the fate of the main character. In the movie, the plot can often be used to cause the audience to think while watching, and the revealing of the mystery at the end of the film is often unexpected. Also, mystery movies can use the twists and turns of the fate of the characters in the movie, the development and changes of the unknown plot, or the unclear ending truth to attract the attention of the audience and trigger subsequent thinking and discussion.