The Thirteenth Floor

“Question reality.”

In Los Angeles, a wealthy man named Fuller (Armin Mueller-Stahl) discovers a shocking secret about the world he lives in, and he leaves a desperate message for a friend in the last place anyone would look. Josef Rusnak follows the friend, Douglas Hall (Craig Bierko), as he reads that message and starts digging through what Fuller left behind. Douglas keeps asking questions, and the answers keep getting harder for him to live with.