Satoshi Kon's one and only tv show is a unique mystery series that I can describe as a mix between David Lynch and Robert Altman.
Lynch in the sense that there's a mystery that's very mind screwish and you constantly questioning what's real and what's not, and Altman in the aspect of nearly each episode following a different set of characters and how they are affected by the phenomena known as "Lil' Slugger".
Much like with Kon's debut film, Perfect Blue, the storytelling does a flawless job in constantly tricking you on how you think the story is going to progress. Every episode has a twist relating to a character's information and their past that would make N. Night Shyamalan blush, and Lil' Slugger himself is the biggest question mark of all. Is he real or is he manifestation of the mind? Whose mind? Are these victims insane? What's the deal of him attacking people that caught in a corner of crisis and emotional distress? What's with the sudden episodes about a suicide cult and a meta episode about a studio trying to make an anime?
All those questions are challenged and evolve as the story progresses as we receive little bits of information to the variety of perplexing situations that the story conjures up; and once again I need to praise Kon for managing to tell these complex stories in a short and sweet runtime, 13 episodes compared to the average 20 or so in any other anime. that's one of the biggest lessons Hollywood needs to take, you can make great stories that don't require a 2-hour/2 and 1/2 hour runtime.
Overall P.A. is a perfect show with a perfect and compelling mystery that digs through several deep and abstract layers of the social realm and the conscious realm, one of the best stories to have been conjured up in the history of anything.