Raul Julia, Valeria Lynch, and Ruben Juarez star in this rather enervating 1988 musical about the tangoa Puerto Rican-Argentine coproduction directed by Marcos Zurinaga from a script that he authored with Jose Pablo Feinnman and Juan Carlos Codazzi. Set in Buenos Aires, the film centers on a cabaret show and its three stars, who form a menage a trois offstage. The main problem is that, as in many low-budget backstage musicals, the narrative is so slight that it barely seems to justify its own existence. Some of the actual tangos, however, are well executed and nicely photographed, and there is a series of enjoyable clips from American, European, and Latin American films in which tangos are featured. (JR)