Florida party girl Rex (Roberts) turns out to be the only hope for the NASA space program after a fluke puts her in training with other candidates who may have better resumes, but don't have her smarts, heart and moxie.

　　四年前，尼克（亚当·桑德勒 饰）与奥黛丽（詹妮弗·安妮斯顿 饰）生平第一次侦破离奇命案，如今他们全心投入私家侦探一行，生意却一直不见起色。当他们受邀参加印度王公好友（阿迪勒·阿赫塔尔 饰）在私人小岛举办的婚礼，麻烦却再度找上门：庆祝活动才开始，新郎就成为肉票，光鲜亮丽的宾客、亲友，甚至新娘本人，个个脱不了嫌疑。这件案子虽然危机四伏，尼克与奥黛丽却可能因此让侦探社起死回生，还能得偿夙愿，畅游花都。