The Travelling Salesman's Problem

Jed Halter is a globetrotting software salesman, but then his mother dies. While he is clearing her house he discovers a large box of audio tapes, with a note attached to one from his mother "Jed, start here, sorry, Mom". He listens to the first one and hears an unknown voice, that seems to be of another travelling salesman. He becomes intrigued by this voice, what it has to say and how it links to his mother and himself. Soon after, Jed loses his job and decides to drive right across America, from one ocean to the other, in hope of inspiration. As he travels along Interstate 10, he listens to more of the tapes and finds a growing parallel between his life and that of the other salesman. Along the way he learns about loneliness, hallucinations, fame and the sad story of how the other salesman found and lost love.