Richard van Weyden

When his best friend is murdered by the shadowy Ozunu clan, Raizo (Rain), an orphan raised to be an assassin, vows revenge. But a government agent (Naomie Harris) is also trying to expose the gang, and now, the two must work together to bring the Okunu to justice. Time is running out as the clan's professional killers chase the pair across Europe.

Based on real events, Francesc Boix is a Spaniard inmate in the Austrian concentration camp of Mauthausen who tries to save the evidences of the horrors committed inside its walls.