In upstate New York, two teenage boys are tasked with cleaning out their father's old mobile home on an abandoned property, but the boys are in for a surprise when they discover three crooks on the run have taken refuge in the trailer.

A seemingly wholesome and benevolent family, the Parkers have always kept to themselves, and for good reason. Behind closed doors, patriarch Frank rules his family with a rigorous fervor, determined to keep his ancestral customs intact at any cost. As a torrential rainstorm moves into the area, tragedy strikes and his daughters Iris and Rose are forced to assume responsibilities that extend beyond those of a typical family. As the unrelenting downpour continues to flood their small town, the local authorities begin to uncover clues that bring them closer to the secret that the Parkers have held closely for so many years.