Nothing is what it seems in "The Killers." The story is pervaded with feelings of confusion, unease, and uncertainty. From people to buildings to names, we just can’t trust what we see. Part of this has to do with irony: killers are comic, fighters are weak and defeated. The story’s loss-of-innocence theme is related to the realization that the world is filled with this sort of sad, illogical irony.
The killers are the only characters in "The Killers" who appear as who they are.
The killers are the characters most at odds with their own appearances; in this way, the story’s title is meant to be ironic.