Who's That Girl?Elizabeth Pedroza (Anne Curtis) is a wallflower girl who is deeply in love with John Eduque (Luis Manzano), a campus heartthrob. Because of his enormous popularity in school, John hardly takes notice of Elizabeth. But one day at her lowest, John surprisingly gives Elizabeth a pep talk. This becomes life-changing for her. Few years had past, Elizabeth transforms into a beautiful and successful career woman and John remains to be her dream man. So when she reads his name in the obituary, Elizabeth is shattered with grief and goes to the wake in hysterics to the shock of everyone. It turns out that the deceased is John Eduque Sr., John's father. Realizing her mistake, Elizabeth hurriedly leaves, unaware of the damage she has caused especially on the widow Belinda Enduque (Eugene Domingo). Mrs. Eduque who mistakenly thought that Elizabeth is the mistress of her husband suffers from a depression. Seeing his mother's misery, John looks for Elizabeth to rectify the situation. But the revenge ploy backfires as he falls in love with her, fearing his mother's reaction becomes a dilemma.