A Don Quixote (1989)

After witnessing a boy commit suicide because of stress in school, three highschool friends invent a machine that allows one to successfully study while asleep. Dubbed the Kul-kul machine, they test it on the lowest ranked student in their class. Their experiment is a success and the student gets all A's however, he discontinues using the machine because his friends have begun to avoid him now that he is so smart.