Haiti, night. At a frenetic ceremony Voodoo Priest Emmanuel summons the spirit of the dead Baron Samdi, who takes possession of a female vodouisant. Emmanuel wants Baron Samdi's blessing to do something worse than death to the Englishman that stole his love...Sometime later a jazz band are stranded in Kembleford, comprising of Haitian singer Yveline, saxophonist Joseph, his son and bassist Tommy and Caribbean drummer Lloyd. B&B owners turn them away but a passing Father Brown is only too happy to let them stay at the presbytery, much to Mrs McCarthy's chagrin. When Emmanuel finds them there to take back Yveline Joseph stands his ground and claims they're getting married. Later that night Father Brown wakes to the sound of breaking glass. Everyone converges in the kitchen, where they find a dead chicken on the floor, it's throat cut. Yveline is certain this is a warning...