FYI- due to a scheduling screwup on my part, there will be no episode od Doctor Who next week. It's completely my fault. I'm sorry.
This episode is one in which the Doctor deals with a long-held fear that many people can likely relate to, and decides to investigate further into why it's such a ubiquitous image or dream. Also, more of Danny Pink's history is revealed, and it just gets stranger and stranger. Also, Clara isn't great at the whole tact and sensitivity thing, as it turns out.
Thanks so much for listening, and we will see you in 2 weeks with a new episode!