This movie is a very poor remake of a TV movie called "silent night". This one has no real character development which was so important in the previous one. Also the acting is forced and, often, makes no sense. In the first movie, the tension was real, the characters were fearful of each other. In this one everyone is happy go lucky. Not a care in the world. Which is, of course, impossible given the situation.
Do yourself a favor and skip this one. Watch the original for an in depth look at how the personalities and backgrounds of each of the characters influence a necessary cooperation for the good of all concerned.