Ann is a feature film narrating the story of Ruben, a lower-class visual artist who has decided to abandon his tormented life by taking refuge within his own imagination; creating a world parallel to reality, which distances him from all material and emotional attachment, thus exorcising his ego. His wife Ann, in the face of a deteriorating relationship, attempts to understand Ruben's idealized world; however, her husband's physical and psychological degradation unravels a terrible confusion between reality and his imaginarium (imaginary world), which inevitably will force him to choose which world to belong to before it is too late.