Caroline Ellis, a good-natured nurse living in New Orleans, quits her job at a hospice to work for Violet Devereaux, an elderly woman whose husband, Ben, is in poor health following a stroke. When Caroline begins to explore the couple's rundown Bayou mansion, she discovers strange artifacts and learns the house has a mysterious past. As she continues to investigate, she realizes that Violet is keeping a sinister secret about the cause of Ben's illness.