Family of three are on the road at night and their car stops or something and then this other car stops seeing what's the matter and I'm not sure but other cars stop as well and all of the people end up staying at this hotel and then murders start taking place and they start finding the bodies in weird places like they find one body in a drier and then at the end it turns out it was the little kid all along causing the murders.

Identity (http://en.wikipedia.org/wiki/Identity_%28film%29)