Jo, el desconegut: Arnau is a seventeen year old with a totally carefree life. In high school, falls in love with Olga. From there his life changes. To make merit with Olga, pointing to all those involved in activities, including going to care for elders at the weekend that the association is voluntary Olga. This is how he meets Ramon, a man of a past that has a confusing libertarian principle Alzeheimer.