At a London restaurant where he often eats, Poirot notices that another regular customer has dramatically changed the food he eats. Meanwhile, as old Anthony Gascoigne lies dying in Brighton, his estranged twin brother, Henry, falls to his death. A tragic accident, or murder? Poirot begins to see connections and decides the answer to the mystery lies in a blackberry pie.
Elenco: David Suchet , Hugh Fraser , Philip Jackson , Pauline Moran .