At the beginning of the film, the audience is told in flashbacks that the story involves a murder case, and for some reason the prisoner has a heart of remorse and decides to tell the truth. And the whole case was told by Walter, the insurance salesman who killed two people. According to modern criminal investigation methods, Walter's murder plan is full of loopholes, but at that time he was almost successful. It's a pity that he was disappointed when he found out that he was only a pawn of Phyllis, so he killed Phyllis after she shot herself with a gun.
But it's worth noting what exactly was the motive for Walter and Phyllis to kill? The participants in the murders in "Body Heat" have a clear purpose: lawyer Knight is out to get the woman, and Mrs Walker just wants the big inheritance. In "Double Compensation", we can't feel the fiery emotions of the hero and heroine that they have to kill. Their love is nothing more than a few words of "baby" and "I love you". As for the money, Phyllis didn't seem to care about the double compensation of $500,000, and hardly showed any desire for this money. Such ambiguity of purpose is not unrelated to the revelation of the final deeds.
Throughout the whole case, the only beneficiaries of the two murders were insurance companies. What a disappointment to us in the insurance industry. I would like to believe that today's insurance companies are also mercenary in the days of movie shooting. They don't care what happened to their customers, but more about how to lose some money. At the same time, the increasingly meticulous contract wording of insurance companies and the extreme irregularity of sales by insurance practitioners make it very difficult for ordinary people to obtain the compensation they deserve through insurance.
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