阵容强大！廉政公署、警队、律政司署合力调查，抗击各个贪黑势力。
Many criminals made the mistake of underestimating Lieutenant Columbo, a homicide investigator with a crumpled trench-coat and a beat-up car, who certainly acted as an incompetent bumbler. But he was so polite to every suspect, and he talked so much about his wife (who we never got to see on any episode, but who many believe later had her own show, starring Kate Mulgrew, later of Star Trek: Voyager fame) that he lulled even the shrewdest murderer into a false sense of security. And although the audience had witnessed the murder in the beginning of each episode, it was still a surprise to see what mistakes the killers had made during the seemingly perfect murder.
1940年上海，丁一（张一山 饰）和顾仰山（韩东君 饰）——一个是潮声剧团的龙套演员，苟安于上海租界中，为生计做眼盲密码专家李约瑟的替身；一个是留洋归来的军统特工，为阻止李约瑟替日工作将其误杀，自此两人产生羁绊，顾仰山将计就计，雇佣丁一继续冒充李约瑟，意图破坏日军密码研究计划。丁一被卷入了这场意外，顾仰山作为“助手”并肩战斗，在潮声剧团老板冼碧云的帮助下，潜伏进日军情报机构。他们不仅要破坏日军密码系统的研制，还得掩饰丁一既不眼瞎、更半点儿不懂密码学的事实。身份背景完全不同的两人，经历过重重考验后，结成生死之交。但丁一亲眼见证共产党人为信仰前仆后继的壮举后，秘密成为了一名共产党员，踏上了与顾仰山完全不同的道路。这双兄弟即将面临着人生道路上的重大考验……
早年丧夫的孙妈妈（归亚蕾 饰）怕孩子受委屈未再嫁人，独自将三个女儿拉扯长大，如今她们都己先后嫁人。大女儿孙菲（秦海璐 饰）嫁给了政府官员郑奇（侯天来 饰），孙妈妈很是满意。二女学的法律专业，丈夫赵启龙（姜彤 饰）是商界大亨，这更使孙妈妈称心。唯独小女孙茜（冯一非 饰）嫁给了的哥李琼（孙涛 饰），这使孙妈妈大为光火，大女婿二女婿抓金子抓银子，这三女婿不是抓土么。于是，一场长达十年的岳母和姑爷没有硝烟的战争拉开了帷幕。孙茜为使妈妈感觉自己并没嫁错人，鼓励丈夫学外语，无奈李琼根本不是那块料，孙茜恨铁不成钢。天有不测风云，大女婿二女婿相继东窗事发，孙妈妈急火攻心瘫痪在床，三女婿关健时刻方显好女婿本色，他要为岳母养老送终......
