A brilliant detective is forced into early retirement after losing eyesight. Making ends meet by solving cold cases for reward money, he teams up with a rookie lady inspector to solve a case from her personal past.

Two former lovers find themselves irresistibly drawn back together — despite the fact that each of them is engaged to someone else.

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.