After a beautiful wedding reception in Las Vegas, Cassie and Rick have a long drive through Arizona to a cabin in Pine Top. Unfortunately, during the drive, Rick realizes they must wash shaving cream hearts and wedding messages off his Camaro. But, before they find a car wash, a small black box truck appears from nowhere and challenges them with road rage before it vanishes into the night. Shaken from the run-in, they finally come across a little bit of nowhere, called Dolan Springs, where they discover a broken-down car wash. As Rick cleans the car, Cassie wanders into one of the other stalls and discovers the black box truck, which sits quietly, seemingly empty, as if it is waiting for them. But then, when she grasps that something evil and unearthly occupies the machine, she realizes they’re in danger. So the two honeymooners retreat to the Camaro, which leads to a highspeed chase. However, when they believe they have outrun the dark machine, they discover they’re not alone but that it will take far more than they realize to free themselves. It’s then that Cassie wonders if they will live through the night.