Rita Lucero, co-owner of New Orleans's Zydeco Cakes, is thrilled to be catering an annual ball held at the Monte Cristo Hotel. Designing the high-end desserts is her priority, until she stumbles upon a mystery long-buried at her shop. It's an ornate ruby necklace, hidden underneath her staircase and rumoured to be cursed. After the gem's appraiser suddenly drops dead and Rita herself is targeted by a menacing stranger, she's no longer laughing at local superstition. Now she's trying to stop the curse. before she winds up dead.