Ok, aside from being set in the future there is not much sci-fi to this episode. That being said it is a good psycholigical thriller episode. As stated by other reviewer it is reminiscent of the old Twilight Zone or Outer Limits episodes. And several of the best of those episodes had little sci-fi elements to them, but were more about your head.
However I do hope in future episodes there will be more of those sci-fi elements, maybe a good Asimov robot episode. There are still several more episodes to come so I am still hopeful that we will see more there.
Overall though a good start to the series.