Lame and inane, but a huge hit in Spain. Emilio's Martinez-Lazaro's musical-comedy follows two Madrid couples as they sneak around with one another's partners, and while this sort of romantic roundelay has served as the premise for countless farces it has rarely felt so tiresome. Pedro (Guillermo Toledo) is completely unaware that his girlfriend, Paula (Natalia Verbeke), has been cheating on him. So he's shocked the day she sits him down in a café and tells him their relationship is over; she's simply fallen in love with someone else and she's leaving for good. Shattered, Pedro turns to his best friend, Javier (Ernesto Alterio), and Javier's girlfriend, Sonia (Paz Ve...