In the sweltering heat of one summer in a small Midwestern town, Claire and Don Lowry discover that married life isn’t quite what they’d predicted. One night Don, a father of two, leaves his house for an evening stroll, only to wake up the next morning stoned and lying in a hammock next to a young woman he barely knows. His wife, Claire, out on a midnight run, finds herself bumming cigarettes and beer outside the all-night convenience store.

As the summer lingers and the temperature rises, this quotidian town’s adults grow wilder and more reckless while their children grow increasingly confused. Can Claire and Don survive everything that befalls them in this one summer, forgive their mistakes, and begin again?