Grace Evans, an overworked New Yorker looking for a total escape from her busy life, books an Airbnb on a ranch in the middle of Wyoming. When she arrives at the idyllic getaway, she’s pleased to find that the owner is a handsome man by the name of Calvin Wells—and he’s eager to introduce her to his easygoing way of life. But there are things Grace discovers that she’s not too pleased about: A lack of cell phone service. A missing woman. And...