La vida sublime tells the story of a grandson who finds the passion he seeks in the character of his dead grandfather, «El Cuco», and the trip his grandfather made as a youth to southern Spain in the early 1940s. A trip that should have remained a family mystery. The South and his grandfather open up a fascinating new world, a space in which a personal memory that immortalizes «El Cuco» can be created. A tribute by a grandson to the lost generation of the Franco dictatorship era, one which was not able to fulfill its dreams. A quest for the myth, and the sublime. A new writing of family history. A film that deals with the issue of borders. Borders between North and South, imagination and reality, present and past, grandfathers and grandsons, Spain and America, madness and lucidity