Last night we watched Geraldine McEwan as Miss Marple in By the Pricking of My Thumbs, which to my surprise had the characters of Tommy and Tuppence, around 1948, about 25 years after their appearance in the series Partners In Crime.
Besides the title, there are more references to Macbeth, along with nods to Hänsel and Gretel, a witch killing children, a mysterious house in the woods, American forces leaving England. and it was all quite creepy.