The Gate (2011)

District S is a heavenly place where everything is beautiful and peaceful. District M is really dark on the other hand. Everyone is fighting and dying. No one can go through the intersection between the two counties but the street cleaners. The story is about this one street cleaner named John. District S can make dead things alive again, and District M makes things die. When John's best and only friend, Goldfish, dies, he tries to bring it from District M to District S, even though there are irreparable dangers in front of him.