The 'W' Files is a 2003 Hong Kong fantasy-adventure-mystery television period drama serial based on Ni Kuang's novel series Wisely, starring Gallen Lo as Wisely. The series was first broadcast on TVB in Hong Kong from 2 June to 11 July 2003. The 30-episodes long series contains a total of eight different stories, set in China in the 1930s.
In the 1930s, Wisely returns to China from his overseas studies and runs a detective agency in Shanghai to investigate paranormal events. He meets a doctor named Pak So and she becomes his love interest, but they encounter several trials and tribulations to test their love before they finally get together. The series is divided into eight different stories, with Wisely and his team setting off to investigate and crack each mystery case.