Ralph Anderson returns to his remote California hometown for the first time in many years. Now a lawyer, he has been estranged from his father, Lloyd, and brother, Tippy, ever since being sent to reform school as a youth for stealing a car, taking the blame for his brother's crime.Lloyd is now sheriff and Tippy his deputy. Forced to represent a wanted criminal, Ralph asks the law to look the other way while a local airfield is used to enable the mobster, Massonetti, to flee the country. A disgusted Lloyd agrees to help, but Tippy decides to arrest Massonetti and cash in on a big reward.Tippy's beautiful wife Linda was once the love of Ralph's life and regrets his long absence. She is tired of Tippy's shiftless, drunken ways and Lloyd's domineering rule of the family.Massonetti arrives in town, backed by Davis, his top thug. Tippy and two deputies, Karger and Eddie, make an amateurish attempt to capture Massonetti, only to get Lloyd shot and killed while trying to stop them. Ralph manages to get Massonetti behind bars at the town jail.The mob cuts off phone communication and highway access to the town. Ralph suggests driving Massonetti to the authorities in Barstow in the mobster's own fast car. Noticing the tension between the brothers, Massonetti taunts them both and offers $25,000 to tempt Tippy into betraying Ralph and setting him free.On the road, deputy Eddie is ambushed and the brothers learn that Linda has been abducted. A deal is made to get her back, but Karger is killed and the car is disabled. Ralph manages to get the four of them to a gas station, where the owner is found shot. In a fight for the gun, Ralph is winged and Tippy seriously wounded.Borrowing a miner's jeep, Ralph drives Massonetti to a main highway, where two policemen take them into custody. They turn out to be impostors who drive Massonetti to an air strip where Davis is waiting with a plane. After they board, Ralph drives the car into the plane, overturning it. He drags Massonetti from the wreckage and holds him until real cops arrive. By the time he returns to the gas station, Linda is watching Tippy's lifeless body carried away.
罗杰（加里·格兰特 Cary Grant 饰）是个平凡的广告商人，最近却莫名其妙的惹了一身的麻烦——他被别人错认成一名叫“凯普林”的人，还被人灌醉放进车中，意图造成车毁人亡，命大的罗杰却顺利逃过这一劫。这个离奇的经历让罗杰又后怕又好奇，为了证明自己的清白，他非要找出真正的 “凯普林”不可。噩运在纠缠罗杰。他一路设法摆脱追杀，一边千里追踪凯普林的线索。他跳上了一趟开往芝加哥的列车，车上巧遇娇娃坎多（爱娃·玛丽·森特 Eva Marie Saint 饰），愿意助他一臂之力。眼看就快可以约见凯普林，事情却又起了波澜——他不但没有见到凯普林，还随之陷入了又一场危机当中。真相越来越扑朔迷离，拉什莫山的总统雕像，也成了一场生死搏斗的大舞台。
A hit and run of an 18 year old girl becomes the hub of a wheel that sets into motion many a spoke - a journalist , a raging mother, a cop and a system all caught in an ethical dilemma. Questions raised only to realise that truth is rarely pure and never simple.