11/22/63

The book 11\22\63 by Stephen King tells a story of a time travel. Jack, a divorced middle-aged secondary school teacher, incidentally finds a door to the past. No matter how many times he goes through this door, he finds that he comes to a fixed time: September 9, 1958. Afer realizing that he can change the history, Jack becomes obsessive about stopping Kennedy from being assassinated. In his view, if Kennedy is not assassinated, the Vietnam War will not be launched, Martin Luther King will not be murdered and the world will be better.