Unknown

Five men wake-up in a chemical warehouse without memories. One man is handcuffed and bleeding with a shot on the chest; the other one is tied-up to a chair; the other one has the nose broken; and the other two are lying on the floor. They unravel that two of them have been kidnapped and the other three are bad guys, bur who is who? Meanwhile, the police force try to track the criminals that will catch the ransom and find where their hideout is.

"Unknown" is a surprisingly good thriller, with a dramatic and suspenseful story that uses elements of "Cube", "Memento", film-noir genre and many other movies ("Saw", "Reservoir Dogs" among others). The explanation for the lack of memory of the men is very reasonable, the acting is excellent and the final twist is totally unexpected. The character played by Jim Caviezel is very interesting and complex. My vote is seven.

Title (Brazil): "Os Desconhecidos" ("The Unknown")