Over the years, themes of duality have been explored and exploited in film and TV. ABS-CBN’s early 2018 offering, Sana Dalawa Ang Puso, is its latest endeavor to go down this familiar path. Not to be instantly judged as a misstep though, because every generation seems to give birth to an iconic duo - bitter rivalries between polar opposites, tragedy-stricken twins separated at birth, archetypes of good and evil caught in everlasting battles – they sometimes end up becoming the pairs that defi...