A full-cast BBC Radio 4 adaptation of Agatha Christie’s novel, known to be a favourite among her own works.When Doctor Calgary visits the Argyle family, he believes he brings good news. He is there to clear the name of Jacko, who was convicted of the murder of his own mother, Rachel. But the doctor’s news is not greeted with the enthusiasm he expects, and the family seem intent on resisting both his help and the investigations of Inspector Huish.When a furt...