The number one reason is that Georgia (Ai Ai delas Alas), her mother, disappeared from her life twenty years ago and never came back.
Now Christine is confused: Why does her father want to marry her mom, who had caused them so much heartache?
Christine tells her father that she will go to the Philippines to find out if Georgia is indeed worthy of his love.
However, her real plan is to look for evidence to discredit her mom in her dad's eyes, so she can prevent the wedding.
With the help of her Pinay yaya, Nanny Ninonu (Eugene Domingo), she captures with a videocam every little imperfection that she finds in her mom.
When Christine goes to her mother's town in Malabon, what starts out as an investigation turns out to be a hilarious yet touching journey for both mother and daughter.
Christine's outrageous attempts to expose her mother's flaws are all foiled, as Georgia also comes up with hysterical schemes to win her daughter's love.
Meanwhile, things get more riotous when Nanny Ninonu's blind heart falls for Junjun (John Lapuz), who is obviously gay.
Again and again, Christine is frustrated as no matter how she tries to harden her own heart, she cannot help but fall in love with her mother's town and its people, especially Val (Luis Manzano), Georgia's anak-anakan.
Through Val's eyes, she reluctantly begins to see what it means to have a real mother.
Despite his feelings of attraction towards Christine, however, Val is suspicious of Christine's intentions.
What happens if he discovers Christine's secret plot to discredit Georgia ?
Will Georgia have a place in Christine's life?
Can Christine learn to accept Georgia as her mother, even if she discovers a dark secret in her mother's past?
Eventually, Christine's search for her mother's faults leads her to a discovery of true love.
In trying to uncover her mother's hidden scandals, she manages to unlock her secrets to heartfelt motherhood and simple happiness.