Nora Best is the envy of her friends. She's just turned fifty and has traded in her home with The Perfect-Ass Husband for an Airstream trailer and an adventure of a lifetime across the US.

But during their leaving party, Nora finds her husband in a compromising position with a friend. Storming out of the party she jumps into her truck with no idea how to tow the Airstream or where she's going.

Nora ends up in a campground in the mountains of Wyoming, drowning her sorrows with its managers, Brad and Miranda. When she is woken by a frantic Miranda after Brad has disappeared and bloodstains have been found around the campsite, Nora finds herself caught up in an adventure she could never have expected . . . facing a charge of murder.