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Behind closed doors, patriarch Frank (Bill Sage) rules his family with a rigorous ferver, determined to keep his ancestral customs intact at any cost. As a torrential rainstorm moves into the area, tragedy strikes and his daughters Iris (Ambyr Childers) and Rose (Julia Garner) 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.