After a random school shootout leaves a scientist's daughter and the shooter dead, he uses nano-robots to look into a psychopath's memories to find reasons for violence and a way to treat it.。许梦云因重男轻女误会,被儿媳周彤害死,重生后回到半年前。她凭借智慧,巧妙利用监控、证据等,一次次拆穿周彤的谎言和阴谋。周彤为了霸占张家财产,与情夫勾结,不断在张敬面前演戏。许梦云设局让周彤在投资宴会上原形毕露,张敬终于看清周彤的真面目。。