Dusty archives are opened, and a sense of tension fills the air. When real-life mysteries from Hong Kong become the storyline, can these cold cases finally be solved? While pursuing clues, can the investigators break through the deadlock and bring the truth to light?

Michael Miu Kiu-Waias To Hoi-pan
Eliza Samas Yim Cheuk-wing
Lee Tin-Cheungas Mak Sau-ching
Anjaylia Chanas Man Ching
Wilson Ai Waias Tai Sung-pak
Catherine Chauas Lee Sze-yi
Sophie Ngan Chin-Manas Suen Kwok-choy
William Chakas Forensic Pathologist
Rebecca Zhu Chenlias Ching Tsz-yiu
Gary Tang Tak-Hey