Speech of Silence (Traditional Chinese: 甜言蜜語) is a TVB modern drama series broadcast in June 2008.

With the support of her mentor Ko Ming (Yu Yang), Tong becomes a voice-over talent by utilizing her lip-reading ability.

At the production studio, she meets another voice talent Leung Kai-Yin (Kenneth Ma), who is also interested in the industry.

Unfortunately, on one occasion, Tong's sister Chai Ka-Yee (Elaine Yiu) had everyone believe she was about to commit suicide after failing in a relationship.

While trying to console her, Tong falls and hits her head, causing her to lose her hearing completely.