Medical Examiner Dr. Qin 2: The Scavenger

Eccentric medical examiner Qin Ming, police detective Lin Tao and assistant medical examiner Chen Shiyu team up to find a mysterious killer known only as the 'Scavenger', who specifically targets the wanderers and misfits of the city.
(Source: DramaWiki)
~~ Adapted from book 4 "Scavenger" (清道夫) in the novel series "Medical Examiner Dr. Qin" (法医秦明) by Qin Ming (秦明).