After their Grandmother's death, Alexis and her siblings arrive at her house to clean and tidy up the vast, two-story French Colonial. During their purging and rearranging, Dante, their brother, ignores his cleaning duties and provides a sizeable antique jar he discovers filled with various skeleton keys. He convinces his sisters and wife to select and explore the house to find which keys open any of the doors within the hallways of the neglected mansion. As each family member selects a key, it opens doors to their terrifying memories from which there is no escape.