S01E01 The Terror of the Twins
Sir George Fletton has long yearned for a son and heir; but when he becomes the father of twin boys, his paternal feelings change into an unnatural hatred bordering on madness.
Tales of Mystery was a British supernatural television drama anthology series based on the short stories of Algernon Blackwood. It was broadcast by ITV and ran over three seasons from 1961-1963. Produced by Peter Graham Scott, each episode was 25 minutes long and introduced by John Laurie. None of the 29 episodes broadcast survive in any television archive, however.