Bernard Prior was never popular with the rest of his family. And when his second cousin, Sheila Malory, is warned that he is visiting members of the Prior family in order to research their genealogy, Sheila considers it nothing more than a bore. However, what seems like an innocent pastime soon turns into something more sinister. When Bernard dies in suspicious circumstances, family secrets start to emerge. Sheila begins to realise that his research into their family history may have turned up more than a collection of old photographs. Never one to let sleeping dogs lie, she takes it upon herself to discover the truth behind Bernard's demise.