Detective Superintendent Roy Grace is approached by colleague Detective Sergeant Branson to help investigate the disappearance of a Brighton property developer.

Dr Turner gets involved with a troubled young man, and Lucille makes new friends. Meanwhile, Barbara lies ill in hospital.

Dessicated corpses, terror in the canal and a visit to the sinister House of Calvierri – the Doctor takes Amy and Rory for a romantic mini-break, as the Tardis touches…