Batman Issue 516

"Nightmares"
Batman investigated a series of murders in which the victim ended up without its heart, but it appeared they stopped beating before foul play was involved. He found a pattern in the victims and awaited the killer at the next scene. He wasn't quick enough to save the target, and he ingested some of the heart-stopping gas. Hallucinations and panic followed.

Individuals

 * Batman
 * Harvey Bullock
 * James Gordon
 * Mackenzie Bock
 * Azrael
 * Stan Kitch

Locations

 * Gotham City