The tragic death of one of his accomplices also plunged the protagonist into deep suspicion, exposing his obsession.

In fact, the director uses the protagonist's paranoid perspective to easily create an ambiguous understanding of the plot for the audience, creating confusing suspense: is the fellow killer creating an "accident" in an attempt to kill him, or is it just an accident?

As a professional expert in planning accidental murders, the protagonist simply does not believe that there are accidents in the world, just like people who often lie do not believe that others are telling the truth. His obsession later paid tribute to Hitchcock and Coppola

The plot is vividly depicted. Whether he is peeping with a telescope on the rooftop or installing a bug to monitor the insurance broker, it is revealed that his inner demon is at work and he is trapped in a self-created threat and fear.

All these obsessions stemmed from the death of his wife in a car accident. We have no way of knowing whether his wife died in an accident or murder, but judging from his extremely cautious character and professional status, he believes that the accident was man-made.

In the end, the insurance broker witnessed his wife being involved in a car and died tragically, which led to the sudden ending of him killing the protagonist with a knife, which added to the meaning of reincarnation of fate. He tried to sabotage the "accident" he designed to save people, but inadvertently led to the real accident.

A car accident. This seemed to be a joke played by God on him. The person who caused the accident could not escape the accident, and eventually died from it, or died from his own obsession. This is an inescapable numerology cycle, with a strong

Fateful undertones surface.

And the Easter egg at the end makes this fatalism even more meaningful!

The theme was also highlighted, unexpectedly!

I believe that when seeing the easter eggs, many people feel suddenly enlightened or have a creepy feeling.
Chapter completed!