Midnight Dormitory: Catch the Unusual Behavior Among Roommates

I woke up in the middle of the night and found that my roommate was lying on top of another person, with his head buried in the other person's neck "moving". Just when I thought it was making out, it wasn't until I smelled the smell of blood and saw his white eyes and blood-stained teeth that I realized that it was not making out, but a zombie eating someone! !