This movie is an ideal teaching tutorial for anybody buying a camper - especially if it's used.
Bring a mechanic with you before you purchase it.
Be sure that doors, windows, heaters, sinks, air conditioning and lights all work as they should.
If you're buying a used camper - it's best to check it out properly, give it a good clean and when you go away for a vacation after cleaning it out properly, make sure that you have it mechanically sound and roadworthy.
Be sure to bring some tools with you in case the camper breaks down and maybe have a HANES repair manual for the vehicle you have purchased.
Be sure to bring flashlights, many blankets, plenty of food, a GPS and compass, safety flares, first aid supplies and people who don't make stupid decisions on a minute by minute basis.
Otherwise you may end up in a low grade thriller movie like this.
This movie gets worse the more you watch it.
With every moment that passes, it just becomes more insane.