There's a good little thriller lurking somewhere in the depths of "Unknown," but it never quite rises to the surface.

You wish some of the plot holes had been spackled better.

A nifty little psychological crime thriller that suggests a Treasure of the Sierra Madre for the postindustrial age.

Unknown, with its fast cuts, bad monologues and psychedelic flashback sequences, relies too heavily on plot twists that are at best convoluted and more often just plain ludicrous. That said, the final pay off is great.