The Cat

So-Yeon suffers from claustrophobia due to a traumatic incident that occurred to her as a child. She works as a groomer at a pet shop. One day, a cat named Bidanyi comes into the store. The next day, the owner of Bidanyi is found dead in an elevator. So-Yeon, by request from police officer Joon-Suk, takes the cat home. (imdb)