It is 1974 and Dvir (Tomer Steinof), just about to turn twelve and entering his Bar Mitzvah year, lives on a Kibbutz in Israel with his mother and older brother. His father died some years earlier, but no one will tell Dvir anything other than that it was an accident. Dvir's mother , Miri (Ronet Yudkevitz) is fragile and mentally unstable, and Dvir does his best to look out for her during the limited time each day hi is allowed to spen with her. Sweet Mud is, on the surface, a very simple story of a son's relationship with his fragile mother, but there are so many subtle threads woven into the fabric of the story that the end result is a richly complex tapestry of culture, idealism, love and freedom.