Shiraishi, best known for his horror work, comes with something a little different. A Beast in Love is tricky to describe, but at heart it's a dark (even vile) comedy with thriller, horror and light romance elements to flesh things out. The result's a bit of a mess, but if you can appreciate Shiraishi's sense of humor, there's a lot of fun to be had.
In an unnamed town, deplorables gather to escape from their dark past. One particularly shy-looking guy stands out between all the crazies, when pushed even he turns into a manic serial killer. Several people are out to get him, but it's a creepy cross dresser who appears to be the most interested.
There are no heroes, no likeable characters. The film does come with a big trigger warning since one of them is a cross dresser and there's only room for negative stereotypes here. If that doesn't bother you than you can brace yourself for a bit of excessive Japanese weirdness. The technical qualities aren't quite up to par, but the comedy hit the mark for me and the runtime is pretty short. Very fun and entertaining filler.