I loved this episode and was so excited for a sequel to my favorite episode "Midnight", BUT I didn't really see any similarities in behavior that linked the alien in "The well" to the alien in the original "Midnight" besides it's shifty-ness... bummer. I was hoping to see the alien learning at some point and its evolution/process into becoming the version we see here. Still a wonderful watch but it was missing some key elements in my opinion.