In the Chamber of Bliss (Traditional Chinese: 蔡鍔與小鳳仙) is an TVB period drama series, starring Damian Lau, Kathy Chow, Kenneth Ma, Angela Tong and Toby Leung as the main leads.

Military Governor Choi Ngok (Damian Lau) has been attempting to overthrow the Yuen Sai Hoi government.

To facilitate his plan to stage an uprising in Yunnan, he pretends to be fooling around with the highly sought-after courtesan Cheung Feng Wan (Chow Hoi Mei), nicknamed Siu Fung Sin, to avoid detection.

Yuen Sai Hoi (Law Lok Lam), who is suspicious of Ngok, sends the Chief of Staff Mok Yik Tin (Lam Ka Wah) to spy on him.

To ensure the success of the revolutionary movement, Ngok carries on with his affair with Wan as a camouflage, without realizing that she has seriously fallen in love with him.