John Stockton arrives in the village of Lamberley and when bad things begin to happen, the local residents hold the newcomer responsible. Soon, the gossipy town folk find out that Stockton is a direct descendent of the Sinclair family, burned as suspected vampyres 100 years before. After the mysterious death of Bob Ferguson's baby son, a killing that has all the hallmarks of a vampyre, Holmes and Watson are called in to investigate before the residents take matters into their own hands.
In a small village, Holmes and Dr. Watson investigate several mysterious deaths, believed to be the victims of a vampire. The villagers suspect their newest resident, John Stockton, whose ancestors were burned there as vampires 100 years ago. Stockton is also an accomplished student of occult ritual, and plays on their superstitions. But even Holmes cannot quite believe his own eyes.