A group of fat people from the Israeli city of Ramla is fed up with the sanctity of diets and the 'Dictatorship of the Thinness' of the diet workshop they participate in. They leave it and discover the world of sumo, where fat people like them are honored and appreciated. Through sumo they are connecting to themselves and to their fat body, each one in his own way. Herzl an obese guy, starts to work as a dish washer in a Japanese restaurant in Israel. Herzl is exposed to the world of Sumo through Kitano, the restaurant manager, who was a Sumo coach in Japan and escaped to Israel, after he got involved with the Yakuza. Herzl falls in love with the Sumo world and wants Kitano to be the Sumo coach of his obese friends that gave up their diet. 'My Own Private Sumo' is a movie about the coming out of the closet of fat people and about their ability to accept their fatness and relate to their body through the world of sumo.