…only a few titles actually change your perception of a well-established universe and sometimes all-too-familiar characters. The Dark Knight Returns did it, Year One did, Red Son, too. Kingdom Come does it also.
Batman: Holy Terror takes place in some Cromwellian dystopia where the Machiavellian elite rule with an iron fist. Bruce Wayne is a priest who is told by Gordon, who himself is an Inquisitor, (nobody, Spanish Inquisition, you know the drill) tells Bruce that the powers-that-be ordered the execution of his parents due to them helping vagrants and miscreants on the sly. Not good.