Many anime start with light, easy to digest humor and move on to deeper issues. Trigun is an example of this. Welcome to the NHK seems to be doing almost the exact opposite, as of the 6th episode. The first three or four episodes are creepy, disturbing, and downright insane.
The main character, Sato Tatsuhiro, spends his days in an apartment. He has a hallucination where his appliances reveal to him that there is a global conspiracy to create Hikikomori (shut-ins) like himself. Things become very strange as Sato attempts to convince a young girl, who seems to be stalking him, that he’s actually normal.
Overall, I’m looking forward to seeing more of NHK. The way the (very insane) characters interact with each other is unbelievable. I couldn’t stop myself from laughing at the dream Sato offers for psychoanalysis.