Midnight University

Star is a popular influencer, but she's not really smart in English; therefore she keeps failing that class. When she once again fails a test, the vice-principal forces her to take extra classes in the old building of the university that has been shut down after a series of death occurred there decades ago, or else she can not graduate.
Star is really scared to attend the class by herself, so she recruits a bunch of people through her social media to attend it with her. But then there is this quiet guy in class as well...