I found this revealing about human nature. Though the world was a bombed-out wreck, she still threw her chicken bone in the trash. He flung garbage on the ground or knocked items over without a thought. An interesting analogy, as you could argue, what difference does it make now... or be equally valid in saying, why should I behave any differently now? The sort of fascinating questions the Twilight Zone so often generates.
Elizabeth Montgomery is extraordinary beautiful and gives a truly riveting performance here; it's clear she possessed far more acting talent than perhaps she got a chance to display in her later career. Bronson is great as well. In fact, it's a testament to their skills that you hardly notice they are the only two actors in the entire piece.