Mila Yshna Ordoñez married Seth Von Arcilla because of money and family name. A normal cliché reason. Iyan ang alam ng lahat. For everyone, she is a gold digger who wants all the luxuries in the world. but inside that dirty lie was the nasty truth that they are keeping.
Seth is a lame a*s guy who took advantage Mila because of his definition of revenge. He believed that it's her who destroyed their family and suspects her for having an affair with his father.
Mila was happily living with her life before. Kahit mahirap ang mahalaga sa kaniya ay kilala niya ang sarili niya at kilala rin naman siya ng mga taong malalapit sa kaniyang buhay lalo na ang kaniyang best friend na si Stephen Blaize Yui.
Stephen, siya na siguro ang perfect example ng isang bestfriend na handang gawin ang lahat para sa kaniyang babaeng minamahal. And he did, he wanted to do everything for Mila. Kaya ng mabuntis ni Seth si Mila inako niya ang bata. Pero ang pangarap ni Stephen na perpektong pamilya for him and Mila. Gagamitin ni Seth na pagkakataon ang kahinaan ni Mila to plot his little revenge on her.
Mila was then f****d to marry Seth, but years later when every sin has seem to be forgotten, it will resurface as a consequence of their dirty past. The supposed to be perfect fake family of Seth and Mila will be shaken when Stephen will returns.
A Sinful affair is the consequence of their dirty past. The supposed to be perfect wife will become the unfaithful wife and the perfect bachelor will become the Lover.
Mila Ordonez is the unfaithful wife of Seth Von Arcilla, and her affair with Stephen Yui will be deemed as the Sinful Affair.