话唠杜宇飞（王千源 饰）处于半退休状态的能叔（刘桦 饰）、恨嫁女花姐（袁姗姗 饰）以及新人陈笠（周游 饰）组成的不靠谱缉毒刑警小队，为了更隐蔽地监视毒贩，他们盘下隔壁的龙虾店。却不料生意火爆起来。在一边经营龙虾店一边搜寻线索时闹出一系列荒唐笑话，而围绕这家龙虾店，还隐藏 着一个更大的阴谋……Four police officers open up a lobster restaurant as a cover in order to catch a notorious drug dealer, only to find their secret recipe is more popular than they expect. When they get caught up in their new business venture, they find a bigger conspiracy at work.