Over four decades, 'starchitect' and master provocateur Rem Koolhaas has shaken up the field of architecture, and redefined the role of the architect in the world. Filmmaker Tomas Koolhaas spent 3 years following his father around the globe, playing witness to Rem's extraordinary creativity, as well as exploring his works through the eyes of those who actually inhabit them. REM is a rare and unique insight into the mind of a genius.