Plot-<span>the main events of a play, novel, movie, or similar work, devised and presented by the writer as an interrelated sequence.
Exposition-</span>Exposition<span> is a </span>literary<span> device used to introduce background information about events, settings, characters etc. to the audience or readers. </span>
Yes if it is not your work then it is plagiarism to copy and say you did it. you always want to rephrase your work. (: