The intellectual brain "Stem" is simply the initial prototype of "Skynet" in "Terminator"!
The very intelligent "Stem" concealed his abilities from Eron before being implanted into the male protagonist's spine, including the ability to communicate with the host, so that Eron could find a body suitable for him to develop his "Skynet" plan! Although Eron found that Stem has self-evolved and self-awareness and is stronger than the previous version, he suddenly realized the seriousness of the problem and tried to close Stem, but in the end he failed and was killed by Stem!
There are two simple reasons why the male protagonist was selected by Stem: one is because once the host has modified other electronic components, it is likely to be hijacked by remote control in the later stage to hinder Stem's plan! The second is that the male protagonist is weak-willed (Stem said when the male protagonist tried to stop Stem from killing the police detective: "Your mind is very fragile, if you resist me, your consciousness will collapse." So after the male protagonist strongly resisted, he lost He has become self-aware and was hijacked by Stem and locked in a small dark room to enter the "happy time" and thus completely controlled by Stem) It is difficult to compete with the computer's control over his brain, and he likes to study traditional cars. It just so happens that his wife has a smart car to wait for the opportunity to hijack!
Then...wait for "Connor" to save humanity!
Let me say that I like movies of this type very much. The producer can consider making the next episode or making it into a sci-fi TV series. There should be a lot of audiences!
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