Flowers in the Attic: The Origin (2022)

S1E4 Part 4: The Martyr

Following the devastating loss of all her children, Olivia, influenced by her cousin's fervent religious teachings, is consumed by a relentless thirst for vengeance. This transformation turns her into a formidable and fearsome figure, willing to go to extreme lengths to assert control. When her daughter returns amid yet another family tragedy, Olivia's dark side emerges, as she resorts to locking her grandchildren in the attic, showcasing the depths of her despair and the lengths she will go to in her quest for retribution.