Radical Breach is our attempt in exploring contrast of tension set in a linear circulation. Radical Breach is inspired by the power of light and shadow to invoke different forms of tension within the user. Modular forms creating breaching slits of light help realize this idea; together with the thin columns in the corridor, it creates a shift in tensity experience as the user moves from one zone to another. Our idea reflects on the current COVID-19 pandemic, bringing to mind an introspection of uneasiness and uncertainty that we will experience as we tread along this challenging path.