What is this series about?
LSF is not the lead character in this movie because the film concentrates more between Andy Lau's Yip Goo Sing and Ekin Cheng's Sai Mun Chui Suet (whose name is translated into a lamentable English name "Simon the Snow Blower" btw). The presence of Nick Cheung's LSF in the movie is just to provide comic relief.
