Ruthless siblings Roderick and Madeline Usher have built Fortunato Pharmaceuticals into an empire of wealth, privilege and power. But past secrets come to light when the heirs to the Usher dynasty start dying at the hands of a mysterious woman from their youth.
A young man returns to his isolated hometown on Crockett Island, hoping to rebuild his life after serving four years in prison for killing someone in a drunk-driving incident. He arrives at the same time as a mysterious, charismatic young priest who begins to revitalise the town's flagging faith. However, the community's divisions are soon exacerbated by the priest's deeds while mysterious events befall the small town.
Samantha Sloyan (born January 4, 1979) is an American actress. Sloyan is best known for her roles in In the Key of Eli, Scandal, Hush, Midnight Mass, The Fall of the House of Usher, and Grey's Anatomy. Description above from the Wikipedia article Samantha Sloyan, licensed under CC-BY-SA, full list of contributors on Wikipedia.