The story of Dr William Jackson Crawford, an engineer and teacher, who carried out a series of strange experiments with a teenage medium and her family before his untimely death on the shores of Belfast lough in 1920.

Dr Crawford’s findings were extraordinary and widely published – but was it all a hoax?

Episode 4 – A Question of Propriety

Dr Crawford records his experiments with Kathleen and her family in painstaking detail – but some feel his methods, which frequently involve underwear, are not appropriate.

Produced by Conor McKay