AfamilicidemadeGuanHongyu,whowasoriginallyacarefreelibertine,awantedsuspectontherun.Asheadofthecriminalinvestigationdepartment,histwinelderbrotherGuanHongfengvowstobringthetruthtolight.However,GuanHongfengwastakenoffthecasebecauseheisanimmediatefamilymemberofthesuspect,soheresignedindignantly.GuanHongfenglaterworksasaconsultantforthepolice.However,Mr.Guan,the"consultant,"isactuallyplayedbythetwinssincetheelderbrothersuffersfromnyctophobiaandcan’tworkatnight.Sincethetwohaveverydifferentpersonalities,theystruggletoavoidbeingexposedbythepolice.AttheriskofbeingdiscoveredbyZhouXunandallsortsoffriendsandenemies,theyhavemanagedtosolveseveralimportantcasesalongtheway.
「Day and Night S1」是由【王伟】执导、(潘粤明,王龙正,梁缘,吕晓霖,尹姝贻,宋乃刚,王余阳,博超,侯雪龙,马薇,岳士涵,高果,曹歌,秦海,张芯宁,宁小花,孙乐天,高梓刚,张美琪,刘柏希,梁鸿淞,黄伟,小米,韩烨州,孙蛟龙,杨凯迪,王政,吴文璟)主演的完整版电视剧,在2017年中国上映播出,麦田影院提供了Day and Night S1电视剧,Day and Night S1完整版电视剧,Day and Night S1免费在线观看,并且还可以支持手机看,不需要下载播放器,方便广大影迷。