Roberto lives isolated from the world in his small flat in Barcelona, secluding himself in a loneliness betrayed only when he gets the supplies his sister regularly procures. When a misfortune leaves him without them, he will find himself facing a difficult crossroads.

In Search of the Oasis belongs to the so-called ''Catharsis Trilogy'', three films that have in common stories related to the therapeutic, the cathartic and the absolute necessity to leave behind some moral wraiths in order to harmoniusly confront and overcome life's different ups and downs: desires, fears, perversions, existential contradictions...