Young doctor Tom Crabbe has just settled his medical practice in the small town of Bridport. Unfortunately, there are already too many doctors in town, and no patient comes to him, so he and a friend cook up a story to convince the townsfolk to see him.

The Crabbes are joined in Brisport by Lee and psychical researcher Harvey Deacon. Though Vicky is dismissive of spiritualism, she is discomforted when they attend a séance with frustrated local artist Oliver Mountjoy Bunn, which takes a terrifying turn.