Here’s a science fiction TV show episode, “Young Couples Only,” I’ve never heard of, based on a Richard Matheson story, and starring…Peter Lorre!
One reason I haven’t heard of it was that it was part of the Studio 57 anthology series, which aired on The DuMont Television Network, the ill-fated network that folded before I was born.
Like almost everything else in the world, it’s on YouTube: