Awatsaya (Anne) is a fierce boss who secretly falls in love with her new young subordinate, Pranont (Mark). Because she needs to maintain her image as a professional and boss she conceals this secret. In order to get to know him better and court him, she uses an online chat program, MSN, using the alias ‘Khun Ab Ruk (Secret Love).'

Their relationship starts to bloom, but is cut short when Awatsaya carelessly reveals her secret to the handsome and cunning Managing Director of the company Lipda (Peter). When Lipda learns of this secret, he tries to help Awatsaya move forward with Pranont. However, he ends up making everything even more troublesome when he secretly falls in love with Awatsaya. The love triangle between Awatsaya, Pranont, and Lipda is unable to end easily when another obstacle like Prip-Praao (Kim) comes into the picture and pretends to be ‘Khun Ab Ruk.'