The Belcoo Experiment is a script I wrote on spec. Itís an ultra-violent thriller with a lot of action. It has to do with a group of 83 American expatriates who work in a building in Sao Paulo, Brazil. At the beginning of what is at first a regular, boring day, walls close up around the building, trapping them inside. A voice emits over the speaker system, forcing them through a series of murderous moral decisions.