An international tech entrepreneur purchases an impossibly narrow piece of steep mountain slope in Austria, where he grew up. The building site will only allow for a 4-meter-wide house. This challenge sparks the interest of well-known architect and founding partner of OMA Rem Koolhaas. It will be the first private house Rem builds since his acclaimed House in Bordeaux over 20 years ago. The building process was captured by photographer and filmmaker Frans Parthesius, using primarily a simple static security camera. Slowly, the house reveals itself as the film reveals clues about Koolhaas's process and his relation to the client.