It seems clear that, sooner or later, Alejandro Amenábar's evident commitment to developing film narrative would find an outlet in a feature film. This chapter provides a plot synopsis and seeks to outline the film's contexts of production and reception. The production of Tesis gave José Luis Cuerda the opportunity to create a new, co-operative-style, production company, called Las Producciones del Escorpion (Scorpion Productions), ostensibly to make films by newcomers, beginning with Amenábar's first full-length feature. The chapter explores the kinds of film narration employed in Tesis, the ways in which Amenábar establishes his modes of audience address and the extent to which the film follows the basic rules of Hollywood storytelling. In its reworking of the suspense thriller format and its exploration of voyeurism and the gaze, Tesis bears the imprint of Alfred Hitchcock's Rear Window and Psycho and also Michael Powell's Peeping Tom.