The most critical part of this film is the order in which the keys are put into the carpet.
As a well-planned murder case, the risk must be minimized.
In the film, the male protagonist emphasizes that Shi Wang should put the key back in the carpet after the incident, so that he can open the door with his own key when he and Mark come back, and then secretly put the key in the female protagonist while Mark is checking the yard after the body is found. inside the bag. But what's the point of his instructing Shi Wang? After all, the key will be left in the stall, why should it be put back after killing the heroine? Wouldn't it be better to put it back immediately after opening the door? The risk of entering the house with the key is greatly increased, isn't it? Was he so sure that nothing unexpected happened? In fact, Shi Wang's approach was very correct, but the male protagonist didn't think of it.
In fact, he should have thought of it, after all, he thought so carefully about other details. So this is a deliberately designed plot, and it still seems a little stiff, but if this is correct, there is no need for this film, and the heroine will naturally become a murderer. The design of this breakthrough point is not good enough, and it is too deliberate, which is contrary to common sense. From another point of view, the male lead is intelligent, and this point is very idiotic.
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