If you loved Saw II, try Saw III
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
Both films are directed by Darren Lynn Bousman, and they both carry the mindfuck mood tag, and they sit in Horror territory. If that's the register that drew you to Saw II, the second film will land in a comparable space — through a different lens.
mindfuck
What Saw III is
Rainy city streets at dusk, sirens blaring. Detectives scramble, forensic labs hum. A genre staple of 2000s horror.

