Follows a group of Hong Kong forensic scientists working together with the Hong Kong police to solve murders through physical evidence left over from crime scenes.

Bobby Au-Yeung Tsan-Wahas 'Timothy' Ko Yin-Pok
Yoyo Mung Ka-Waias 'Nicole' Leung Siu-Yau
Frankie Lamas 'Sam' Koo Chak-Sum / Sam
Linda Chung Ka-Yanas Lam Ding-Ding
Florence Kwok Siu-Wanas 'Yvonne' Mok Suk-Woon
Fred Cheng Chun-Hungas Leung Siu-Kong
Raymond Cho Wing-Limas Sum Hung
Kevin Cheng Ka-Wingas 'Ivan' Yeung Yat-Sing
Charmaine Sheh Sze-Manas 'Bell' Ma Kwok-Ying
Venus Wong Man-Yik