Copycat Killer told a story of a serial killer who murdered several women. Enter Guo Xiaoqi, a hardworking and meticulous prosecutor who aimed to solve the case. The acting was not bad. The music was a bit depressing to me. If you think this is a whodunnit mystery tv show, then you're wrong because one of the prepetrator was already shown as early as in ep 4. I dropped this one after ep 8, because it was so slow, bleak & boring i almost fell to sleep.
I'll give this a 7 /10.