Captain Obvious Reveal: Like Lucy would just be the killer again? And Carol has obviously been very disturbed, and looks too sweet to actually be so? Come on, from the writer of Psycho, you expect a twist!
Harsher in Hindsight: Joan Crawford portrays a violent and unstable mother in this movie. A dozen years later, she would be accused of being such by her adopted daughter Christina in her book, and then infamous film adaptation, Mommie Dearest. Ironically, Strait-Jacketdepicts her character's daughter as framing her and causing more murders, while Christina Crawford was herself accused of exaggerating/making up a lot of her stories about Joan. Images of an axe-wielding Joan Crawford from this film have been used to mock her in relation to this mother-daughter controversy.
You know how when they were waiting outside of the hospital they said that it would take at least an hour for the tactical sorcerist to arrive, which caused Nerin to accept Leiot's help in the first place? And then do you remember the ensuing montage that detailed the incredibly detailed process involved with arming a tactical sorcerist, which involved painting Leiot's entire body with magical runes? And then do you remember that right after Leiot went in to fight the demon, Isaac showed up? What this all points to is that it took Leiot an hour to get ready, meaning that enlisting his help was completely and utterly pointless, especially since Leiot's ensuing battle took out the rough equivalent of a city block.
Then Fridge Brilliance hits; because they estimated that any available certified Tactical Sorcerist would arrive in about an hour (in the dub), it's also possible that Leiot suited up in less than an hour then Black Dog arrived earlier than expected. Being elite, according to Reegs, they could have dealt with their problems faster. As they're dealing with multiple demon attacks, they likely gave a wider time frame because of the average of all their teams' performance. It can also be for the police to not expect too much due to the uncertainty of their operations and for the authority in the area to adjust accordingly, like ordering evacuation or calling for non-sorcerist reinforcements. As for property damage, if the police isn't locking him up in spite of his reputation as a Destructive Savior, it's safe to infer that he's actually doing more good than harm for them to let it slide, especially since more lives could have perished if he didn't show up before the others.
It's outright stated that once a human enters the 'gibbering madness' state they're demon through-and-through, and we don't see anything that would dispute that; all the demons we see are mindless abominations that prey on humanity, with the exception of Isaac, who was in the process of devolving to that state. Leiot equating killing demons to murdering humans rings hollow in all sorts of ways.
The "Flower flower flower!" demon is not only Ax-Crazy, but it also has the ability to shoot poison gas at people that decomposes them in an incredibly disturbing manner.
Isaac's demon form after his Superpower Meltdown is an amorphous blob along the lines of Tetsuo, with the added bonus of having a number of screaming faces on it. That TALK.
Spiritual Adaptation: To Warhammer 40,000, if one thinks of Tactical Sorcerists as Sanctioned Psykers, the Magic Administration Bureau as a combination of the Imperial Inquisition and Adeptus Astra Telepathica, and the Curse as Chaos corruption.
