Chen Fala and Laughing acting is top notch. The story and scripting is brilliant, is a must watch and one of the award winning hong kong drama, I am not sure why the E.U. rating is 7.6 while this is only slightly higher, anyways I give this 8.5/10, i like it and u guys will like it too if u like police undercover drama. This is also the first proper police undercover hong kong drama IMO, much better than E.U., not discriminating E.U. but I watched many police undercover hk drama before this, such as bosco wong one's and E.U., there is bromance and many funny scenes too