1923. The Great War is over, but the ghosts of the dead still linger. Agatha Christie was one of the lucky ones - her husband returned from the conflict - and for her, and her local neighbours, life has resumed. Agatha is beginning to gain some notoriety for her crime writing and she is busy working on her latest novel. But then her neighbour tells her there has been a real 'murder at the vicarage' - a young man, Cecil Coates, has been poisoned, and due to Christie's expertise in the crime genre, the neighbourhood wants her to investigate. At first Agatha is reluctant to get involved. After...