Three middle-aged women and best friends go around the country saving historical sites from the wrecking ball by bringing peace to the ghosts that haunt them and solving the unsolvable mysteries. Like Nancy Drew for adults.
When Ellen and her two best friends travel to Tulsa for Sue's daughter's wedding, they get the crazy idea of flipping another historical home--only this time, it's an abandoned warehouse. When they hear from the locals that the place is haunted, Ellen and Sue convince Tanya to investigate, and what they uncover is one of Tulsa's and the nation's most horrifying secrets.
Ellen and her two friends share a mid-life crisis by hatching a plan to renovate an 1860's Greek revival. Although Ellen isn’t one to believe in ghosts, she comes face to face with something inexplicable in the attic. As they dig deeper into the past, they uncover a shocking history and risk their lives to give voice to the invisible women who suffered behind the walls of the house for decades.
When Ellen and Sue discover that a demon is attached to Tanya, the three friends fly to New Orleans to enlist the help of a Voodoo high priestess. Soon they learn that Tanya's life depends on them finding and consecrating the remains of a "Devil Child," cared for by Delphine LaLaurie and Marie Laveau.
Ellen, Sue, and Tanya travel to Portland, Oregon to help a local billionaire find his missing brother. In exchange for their help, he gives them a haunted mansion, where his brother was last seen. As they dig deeper into a local legend, they soon fear that the cause of the strange happenings in their renovation is more sinister and more powerful than ghosts.