Don't watch it - you miss nothing by skipping it.
I find it truly and honestly disturbing and possibly damaging to have people with a certain authority to present this as a form of fact. They dead serious say the only explanation is a parallel universe.
I don't mind people believing whatever they want to, their choice, but I mind when something like this is presented as a fact and as the only explanation. That is just wrong.
On top of that the whole layout of the episode is just not interesting. They touch down on many different paranormal issues - and I'm sorry to say: but the common denominator is people. All of this happens in the same area, because the people and the culture choose to believe all of these things.
Anyways. The show as a whole is ok, not great, and this episode is the ultimate low. Including the horrible horrible drawings.