A movie has several stories, in one of the story a girl get into car accident, survives but had to stay in a wheelchair. She was a supermodel lives in a big apartment, she has a dog, once the wheelchair get stuck and makes file in the floor, this little dog fell down into this hole and got eaten by rats. There are other life stories of which I don’t remember.
Amores Perros (2000)?
https://www.imdb.com/title/tt0245712/?ref_=fn_al_tt_1