She was best known for her role in the 1984 Hong Kong comedic film, Happy Ghost, opposite Raymond Wong.
[1] Law and several of her co-stars, including Rachel Lee, May Lo and Fennie Yuen became known as the "Happy Girls" because of their roles in the comedy.
[1] Law's other 1980s films during the next four years included For Your Heart Only, opposite Leslie Cheung in 1985, and Fractured Follies in 1988, which starred Chow Yun-fat.
[1] Her television roles included the dramatic series, My Father's Son, starring Stephen Chow and Ha Yu.
She died suddenly from a heart attack on May 27, 2016, at age of 47 at Queen Mary Hospital, Hong Kong.