A documentary about the Large Hadron Collider (LHC), a gigantic scientific instrument located near Geneva, where it spans the border between Switzerland and France, about 100 metres underground. It is a 27 km particle accelerator used by physicists to study the origin of everything. The Circle leaves behind the scientific aspect of the experiment and makes a journey above ground. We follow the 27 km circle in a search of local people with an opinion about what’s happening below.