Holy Shit!

Architect Frank Lamm (Thomas Niehaus) comes to inside a locked portaloo on a building site, with a detonation being readied somewhere beyond the plastic walls. Lukas Rinker keeps the camera in the cramped box with him as he hunts for a way out and works out who put him there. Every minute he spends searching is a minute closer to the blast, and nobody outside knows he is in there.