Batman VS Demons.
Bruce Wayne ala Dark Knight series hears screams through frequency calls emanating from a high security building in the immediate area. He makes his way there and forces his way into the building. The Building is currently under siege by the creatures from the film Demons/Demoni 2.
The demons can be put down by anything that would put a normal human down. But they have claws that can infect a person to become like them. And their blood is acid (like the Alien) will also turn a victim into a demon.
Can he defeat or survive the impeding nightmare/destruction? Batman will do anything necessary to put the enemy down.
Batman has his Xray vision ala Dark Knight.