在这部女作家与谋杀案：人车游戏悬疑/犯罪片中,在小镇生活的发明家发明了无人汽车，两名合伙人去邀请他，却先后遭到无人汽车的追杀，一死一伤。是发明家下的手，还是另有隐情？
Jessica isn't looking forward to tell Cabot Cove that her historical research for Founder's Day proves the captain was actually a pirate and fought on the British side, against Washington's troops. Businessman Charles Woodley lands in hospital after the surging of a car without driver which seemed to be pursuing local Ethan Cragg. Local inventor Daniel O'Brien, who devised a remote control system for cars before he was fired, denies having agreed to a meeting with his former employer Woodley, shortly after the car under remote control strikes again, killing Woodley's 50% Boston business partner, Dean Merrill. Daniel's heir, Tony Holiday, is back in town to present his bride, Leslie Andler Sheriff Amos Tupper happily 'allows' Jessica to 'observe for her next book', in fact doing the sleuthing with and without Amos, who arrests Daniel just for being most likely to have controlled the killer car....
