Synopsis：In the early 1900s, Mary, a young heiress, watched her family destroyed by the ruthless schemes of her governess, Jane. Years later, under the alias Evelyn, she infiltrates the aristocratic castle Jane has married into, posing as a maid to exact revenge. By deliberately drawing close to Jane’s son, Sebastian, she enters a dangerous entanglement where calculated seduction slowly turns into a love that defies her thirst for vengeance.