hey, I'm trying to find the name of this french film i saw once.  i don't know who the actors are, but from what i saw it seemed to be about this girl and she had a party.  At the party all this people died (but i don't think she was killing them) and then the police came, but she had hidden the bodies.  then at the end of the film some friends (i guess) come with a vw bug (that drives backwards) and take the bodies away on the car (they're wrapped in a big sheet).  it seems like the movie was filmed sometime in the 80's but i may be wrong.  if anyone can help at all i will be sooooo thankful!!!
thanks