Elephants Can Remember

"Mercifully human beings can forget". Old sins have long shadows. Magnificently mustached Belgian detective Hercule Poirot agrees to help old friend, mystery writer Ariadne Oliver, for her god-daughter's prospective engagement, delve into the deaths of Lord and Lady Ravenscroft, ruled a double shooting suicide by the police twelve years before. All that is left are dim traces: confusing testimonies conflict from witnesses, the shocking revelations of a Swiss schoolmistress, a doctor's strange diagnosis, identical twins, the dog who bit -- more hints than clues.This production was first broadcast on BBC Radio 4 on 7 January 2006.