Ng Ga Wai longs for the moment to meet her mom, they haven't seen each other for almost 10 years. However, Ah Mui - his loving mother, insists to not meet her son, she even gives instructions to others to obstruct her son's visit. In the meantime, a meantime, a memory that was meant to be forgotten appeared. He remembers what he did to his mother, and an unforgiving sin that leads Ah Mui to leave the family for almost 10 years...

The chief security officer at a top-secret medical facility finds himself caught in an explosive battle when a young thief and his accomplices steal a groundbreaking curative medicine. After discovering the true origins of the medicine, the officer must decide who he can trust to protect the cure from falling into the wrong hands, and prevent an all-out war from bringing the city to its knees.

A typical story of the classic romantic triangle, where one person ends up having to choose between two others. This time, it is set against a backdrop of offices in Hong Kong, with a focus on architecture and its designers.