Torn between three lovers and bored by her typewriting classes Carolina Dillian writes a passionate love letter to fictional Pablo Garza from Monterrey The letter is sent by mistake and received by real Pablo Garzas girlfriend Pablo himself Infante flies to Mexico City looking for an explanation Carolina is rehearsing a musical show for her school dressed as a man When Pablo meets her she pretends to be her brother Anibal a shy and feminine sailor Pablo likes Anibal and invites him to a cabaret After that Carolina falls inlove with Pablo but resists to unveil her real self Meanwhile Pablo feels himself confused because young Anibal is cute as an angel and has those blue eyes