At the end of the story, sam jumped back and didn't save his sister and didn't solve the problem. It would develop like the original world. After sam learned to jump, he would still jump back to save his sister, because at that time he couldn't have the memory that his sister would become a murderer, but There was another random incident in his last dance, just like his previous dance and a subsequent incident made his friend crippled, there was one more thing in this dance, that is, he married his ex-girlfriend's sister. , and had a daughter, and then he learned to jump back to save his sister, and this time after the jump he was still married as before, but his sister was still the same, jumped back and killed sam's wife, and the time she jumped back When little jenny was born (of course it may not be called jenny at that time), because little jenny and sam's father-daughter relationship will not attract the jealousy of his sister, so little jenny will not be killed by his sister. Then the scene is still like the beginning of the film, sam wants to jump back to save his wife, but he will definitely be stopped by his sister. And later, little jenny must have learned to dance. Of course she also wanted to save her mother, so she jumped back and saw the murderer of her sister. Of course, she was very small and could not stop her aunt at that time, so she thought Another way, she jumps back to a point in time before sam rescued his sister, the scene at the end of the movie, burns down the doll sam needed for the first time he jumped back to save his sister, and things finally come to fruition. In the end, the scene where sam never saves his sister is a perfect scene when he jumps back to reality, little jenny jumped back to burn the doll before this time, if there is no such thing as little jenny burning the doll, sam will find him when he jumps back. The sister is still alive, but he should be able to understand that he went back to save his sister, and he can also jump back and burn the doll to solve the problem like his daughter. But not necessarily, the old man said that it is dangerous to jump to the same scene multiple times. Sam is likely to forget a lot of things he knew before jumping, and things will definitely get worse after that. Sam may never be able to put it together again. Things are done. But fortunately, little jenny solved everything, no matter what state Sam was in after jumping back, it was perfect at that time. Finally, the inner monologue of little jenny when she burns the doll with a slightly evil smile is attached. "Hmph, if I want to kill my mother, I'll kill you first!"

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