Help me find that movie !

Hi ! I’m looking for a movie that has 10-15 years. It was about a kid (a girl I think) who meets another kid and they become friend. The friend lives in a remote house in fields and the images are orange, not natural. There is a strange feeling all along the movie, they play with disgusting stuff. We never see the parents of the kids and at point we see that his mother or father was dead all along, lying in bed.
Thanks