Adventurer James Keziah Delaney returns to London from Africa in 1814 along with fourteen stolen diamonds to seek vengeance after the death of his father.
Father Brown is based on G. K. Chesterton's detective stories about a Catholic priest who doubles as an amateur detective in order to try and solve mysteries.
A brilliant but idiosyncratic British detective and his resourceful local team solve baffling murder mysteries on the fictional Caribbean island of Saint-Marie.