This is some spoil.
In lakorn, Aff and Ken love each other since they were kid. Later, Aff's family has some problem, so she has gone from Ken's life without telling him why. She leaves Ken to be suffering and confused for his love for many years. And many years later, Aff suddenly come back into his life again by accident.
She has so many problem in her life. She has to pay the debt of gratitude to Nott because he has ever helped her family before, so she tried to help him to escape from some influential person who he has problem with.
Anyway, Nott is a married man who almost get a divorce from his mean wife and he wants to get remarried with Aff. So, his wife keep bothering and attacking Aff. And Ken has to help her from that problem.
Vicky is a new actress playing lakorn with Ken and she falls in love with him.
She comes into his life while he is confused about Aff. He finds that this girl can soothe his mind, so he also has a good feeling for her too.
I didn't finished reading the novel yet, anyway. And that's what's as far as I know
Here's the opening ceremony clip from Seesan
http://www.youtube.com/watch?v=_cLG9yRmv_Y