The plot of a film, novel, or play is the connected series of events which make up the story.
情节 • He began to tell me the plot of his new book. 他开始向我讲述他新书的情节。
If people plot to do something or plot something that is illegal or wrong, they plan secretly to do it.
密谋 • The military were plotting a coup. 该军方当时正在密谋政变。