This movie is more grounded addition to the Batman mythology, a less fantastical prequel than many of the other entries. The story is solid and straightforward, pretty much what anyone with any knowledge of Batman would expect at this point, but with all the crazy interpretations out there it’s nice to have a standard by which to measure.
Closest comparison: It’s like The Batman by way of The Long Halloween.
Setting: Noir
Plot: Crime
Tone: Super hero