This exact same locksmith plot was recycled three years later as an episode of "Alfred Hitchcock Presents" entitled "The Creeper." The married couple was played by Steve Brodie and Constance Ford in the 1956 half hour program.

Apparently, reusing scripts was not uncommon in the early days of broadcast television. A well regarded 1959 episode of "The Twilight Zone" featuring Steve Cochran reworked the short story "What You Need" which previously was aired on "Tales for Tomorrow" in 1952. The Rod Serling rewrite is much more polished and stylish.

As you noted yesterday, the television series "Hong Kong" essentially revised "The Dark Corner" for one of its episodes "Suitable for Framing."