On the barren, diamond-diving coast of South Africa, Johan and Thami, an ex-cop and a gardener from starkly contrasting backgrounds, maintain a beachfront guest lodge during the off-season while looking for a way out. When Smith, a retired businessman, shows up one foggy night, the two men think they’ve found an ideal investor for their scheme to buy into a government-run diamond concession. Soon, these rootless men find themselves in a power struggle fueled by greed, desperation and entitlement. Groundswell is a psychological thriller about hunger and hope, and the glittering promises of a transforming society.