In Greek mythology, Nemesis is a sister of Lachesis, Clothos, and Atropos, the Three Fates, whose names are reflected in those of the three Bradbury-Scott sisters -- Lavinia, Clothilde, and Anthea.
The tour group visit Blenheim Palace and then wander into the gardens, which are actually the gardens of Hidcote Manor. Stourhead landscape gardens also feature prominently.
Miss Marple's lack of enthusiasm for hotels noted by Lionel to Lavinia Glynn is also mentioned by Dolly Bantry in Un cadavre dans la bibliothèque (1984).
The poem Miss Temple is reading when she is killed is "A Nocturnal on St. Lucy's Day" by John Donne. It depicts the speaker's grief after the death of a loved one.
Final film of Mary Maxfield.