The Blackheath Poisonings

The Blackheath Poisonings is a 1978 historical mystery novel by the British writer Julian Symons. It is a murder mystery set in the late Victorian era.

Plot
Two families, the Collards and Vandervents have lived together for many years in the same elegant house in the wealthy London suburb of Blackheath. The two have grown intermingled over the years, with numerous secrets. When they begin falling dead to mysterious stomach complaints, Paul Vandervent begins investigating.

Television adaptation
In 1992 it was adapted into a British television series of the same title featuring Zoë Wanamaker, Patrick Malahide, Christien Anholt and Ronald Fraser.