Elephants Can Remember

'Who killed whom?' This question is posed of mystery writer Ariadne Oliver. But this time the whodunit isn't one of her fictional novels, but a true crime from her own past. An apparent case of double suicide that claimed the lives of two friends twelve years earlier returns to haunt her and she calls on her old friend Poirot for help. If memory serves Poirot, murder - like history - has an unpleasant tendency to repeat itself...