Coming of age. In Buenos Aires, Eloy is on the verge of manhood. He studies physics, helps with the family headstone business, and does advertising - handing out flyers while walking on stilts or wearing an empanada costume. When his melancholy father dies, Eloy imagines that his father visits him at night; the explanation is more pedestrian - Eloy has started sleepwalking. Things change abruptly: while sleepwalking, he falls through an open skylight into the bed of Elvira, a young woman from Barcelona visiting her grandmother. Elvira invites Eloy to become her lover and teaches him Tantric sex. Eloy discovers bliss. And his father?