Currently watching Fate Zero and I find that serial killer sub story far worse in that regard. Also fairly recently watched Higurashi series, that shit is just fucked up for the most part in multiple ways. Besides, you could sense something was very wrong with that abyss from the very beginning. It was expected.
Finished 91 Days, it isn't bad but not great either. Utterly forgettable, although it doesn't seem like that when you watch. Just twelve episodes + OVA, episode 7.5 is recap and can be skipped.
In the meantime found some time for movie I haven't watched previously, The Wolf of Wall Street. Three long hours of utter boredom and asking myself why the fuck I'm watching yuppie version of Fear and Loathing in Las Vegas (one of few movies I couldn't finish). Every anime I've seen in past two years is way better than this crappy movie. Think I'll stay away from recent Hollywood "classics" for quite some time.