Joe 'Tom' Yateley is an ex-convict. Trying to leave his past behind, he decides to starts working for the Hawlett Trucking company, which transports gravel. It's an aggressive company, where speed is everything. Doing too less runs in a day? You're out. Red is the most experienced trucker, he can do 18 runs in a day. Tom soon makes friends with Lucy, the secretary, and Gino, a ...。一位医生韦伦研究人体在恐惧时会产生一种物质,只要大声的尖叫出来就能将它排除体内,在研究过程中,科技和道德两难的状况是韦伦必须面对的,他将如何取舍?。