I feel bad that my first review on this site is such a lukewarm one. But that's pretty much how I felt.
Story: from the get-go we know who are the bad guys. I watched to the end just because I wanted to see how they would get caught.
Acting: the male lead (Chakrit) also kept me watching because he was really good. Anne was really bad in this drama (in my humble opinion). I was really surprised by how unlikable the character turned out to be. I simply don't know if it was because of her acting or because of the writing. Other than her, every single character did a great job.
Rewatch value: though it was not the worst drama I've seen, I will never rewatch it again. It was hard enough to finish it the one time.