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Harvey Bullock's niece (Y/N) gets thrown into Arkham for the murder of her abusive family, it's hard for her to adjust. You know, because of the psychotic screaming. One day a murderous smile belonging to a 6ft ginger catches (Y/N)'s eyes and she immediately mirrors the expression, and a plan to reveal Gotham's true grin surfaces from their combined minds.

Can the psychotic couple survive the traumas life will throw at them, or can only death cause a separation?

(Follows the plot of Gotham)