When a guest plunges to his death from the roof of Caoin House, Raissa James becomes aware that her uncle shares the sprawling Mobile, Alabama estate with others. With the dead. An ability to connect with the spirit world, tamped down in childhood, springs back to life, and Raissa is determined to figure out who, or what, played a role in the young man's death. But it is dangerous work.

A WWI widow, Raissa had thought a summer house party in 1920 Mobile would be the perfect answer to her loneliness and depression. Young, educated, and a lover of the ghostly tales of Poe and La Fanu, she arrives at her uncle Brett Airley's estate as guest of honor. Food, liquor, games, and laughter remind her that life has only begun. She has lost a lot, but so much more remains.

Raissa seeks the help of a world-renowned medium and a chain of events are set in motion that can't be stopped. But assistance comes in the form of Reginald Proctor, a handsome young assistant to the medium. Raissa can see the dead, but Reginald can read the living.

Together they make up a detective duo that explores the secrets of the supernatural world. They are Pluto's Snitch detective agency.