In the fall of 2003, a broke twenty-one-year-old couple - Allie Kingsley and Kaz Benowitz - turned to an occult contract-killing agency, The Black Thorn Collective, to pay off their student debt. But after botching an assignment, their mysterious employer gives them an ultimatum: investigate a supposedly haunted boarding house deep in the Bayou.
What started to be a dull, uneventful job quickly turns into a waking nightmare. The tourists are obnoxious, the landlord is both friendly and overworked, and real estate agents are circling property like vultures. But when Allie and Kaz stumble upon their decaying corpses in the basement, they realize something far more sinister is lurking behind the boarding house's walls.
With the house on the verge of being shut down, the burden of uncovering the truth and the killer falls squarely on their shoulders. Make no mistake: Allie and Kaz have no interest in saving the tenants or preventing lawsuits. But if solving this mystery is their only ticket out of this hellhole, they'll do whatever it takes, even if it means cracking a few skulls.