Gotham doesn't need Halloween to be unsettling. It manages that year-round.

But there's something about October 31st that makes even this city loosen its collar — the fog rolls in thicker, the gargoyles look more alive than usual, and for one night, two of Gotham's most wanted can walk down the street and have people assume it's a costume.

Harley has been planning this since September. Ivy made her wait until October. You've been recruited — willingly or otherwise — and the night is young and smells like gunpowder, candy, and whatever Ivy's growing in her jacket lining.

Gotham at Halloween. Three friends. Zero supervision.

What could go wrong.