If you loved A Scanner Darkly, try Batman: Gotham by Gaslight
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Theyboth carry the paranoid mood tag, and they sit in Animation / Science Fiction / Thriller territory. If that's the register that drew you to A Scanner Darkly, the second film will land in a comparable space — through a different lens.
paranoid
What Batman: Gotham by Gaslight is
Gotham’s gaslit alleys, snow crunching under boots. A bustle of top-hatted figures parts for a shadowy figure stalking a bloodied woman in an alley, knife still wet.

