If you loved Unknown, try The Number 23
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 mindfuck, paranoid mood tags, and they sit in Mystery / Thriller territory. If that's the register that drew you to Unknown, the second film will land in a comparable space — through a different lens.
mindfuckparanoid
What The Number 23 is
A used bookstore, rainy evening, a novel with a strange title. A humble animal control officer discovers a fictional doppelganger, the lines between reality and fiction blur. Schumacher frames obsession with eerie precision.

