Kenopsia (2016)

(Warning: Spoilers) James finds himself in a dream state in class. While all the students around him go about their social activities no one notices James. As lessons begin, James finds himself unable to concentrate or focus and can't discern if the situation is even real. The bell rings and suddenly James is transported to his locker, where he still struggles to determine what is real. He places a book in his locker, only to have it disappear. As he closes the locker, the once bustling hallways are suddenly empty and James begins his walk to class. Turning the corner at the end of the hall, James finds himself back at the beginning of the same hall. As James tries frantically to escape from this never-ending hallway, he is pursued (or assisted) by a very familiar presence, who is placing signs in the hallway to guide (or deter) him. Finally, James stares down his pursuer and is transported back to the classroom where he discovers that the whole incident was a bad dream.