In the movie The Roommate (2011), one girl named Sara, played by Minka Kelly, moves to Los Angeles for college. There she meets her roommate, Rebecca, played by Leighton Meester, who seems nice at first, but like any horror movie, things take a dark turn. 

One day Sarah meets up with her new friend, Tracy, and things seem to be going well until Rebecca is unkind to Tracy due to accidentally being called “Becca” and she snaps at Tracy and says she only goes by “Rebecca”. That night, Tracy and Sara and their other friend, Irene, come home for a party. That night while Tracy is in the communal bathrooms, a hooded figure comes in, and it is there where we see the hooded figure is Rebecca, who then threatens Tracy never to speak to Sara again as she only wants Sara to herself and proceeds to cut her earring out of her ear! 

This ultimately ends the friendship between Sara and Tracey and we never see Tracy after this scene. Later, we see that the kitten that was brought home into their dorm by Sara earlier in the film is meowing while Sara is out touring apartments with Irene. We see Rebecca get jealous and put the kitten in the dryer, where it blows up due to the heat. Once she is done with the apartment tours, Sara gets a call from Rebecca in tears saying “The cat snuck into the dryer and whacked the button with its tail”. Sara forgives her until she sees that she is wearing the necklace that her deceased sister gave her, but she still decides to keep living with her.