While it could be a lot of movies, this one has shown up on Sci Fi Channel and Chiller Channel.
They Wait (2007) IMDb synopsis: A young mother and her 6-year-old son come face to face with the mysteries of two murders and a great crime against the Chinese community into which they have recently arrived from Shanghai. A couple returns to North America for a family funeral, having lived in Shanghai, China for the previous six years. Soon after they arrive, their son, Jamie, begins to see ghosts and to suffer possession by one of the living dead. It all ties in with the Chinese festival of Ghost Month, when the doors of hell supposedly open and angry spirits are given the chance to terrorize the living.
Does the girl have black dye-stained arms from working in a factory? Is this about them supposedly packaging bones to be returned home but instead smuggling animal parts (I think they're from bears)? Is there a wall behind which are the bones of those they've failed to send to their proper resting place?
Here's the movie trailer: http://www.youtube.com/watch?v=AIdZtg7ssac