Piano player Al Roberts (Tom Neal) loves singer Sue Harvey (Claudia Drake) but they’ve both grown tired of their thankless gig in a small New York nightclub. Sue gets a chance to go west and make it big in Hollywood. Roberts soon follows, hitch-hiking across the country to see her. The trip drags along until he meets Charles Haskell, Jr., a rich man in a big car who’s tired of doing all the driving. Roberts’ happiness turns to dread when Haskell dies accidentally. He fears the police will accuse him of murder so he hides the body and drives on. Later, he picks up hitch-hiker Vera, played by Ann Savage, and assumes the dead man’s name. Vera, who had met the man earlier, knows Roberts is lying and blackmails him into continuing on to Los Angeles and stealing his identity permanently in order to gain a large inheritance. Meanwhile, all Roberts wants is to get to L.A. to see his girl. As Roberts and Vera get closer to her ignominious goal, their mutual hatred rises to the surface and she, too dies accidentally. Now Roberts roams the country aimlessly, shut off forever from decent society and the woman he loves.

Detour captures perfectly the noir belief that nice guys do finish last. Despite Al Roberts implied goodness and his sincere love for Sue, the gods conspire to foil him at every turn. Just taking a ride from a stranger has sealed his fate. The performances by Tom Neal and Ann Savage illustrate the fatalistic view of the film. Resolved to his dismal future his voice-over narrates. ”That’s life. Whichever way you turn, Fate sticks out a foot to trip you.”
Filmed by Edgar G. Ulmer on a budget of only $30,000, Detour has attained a cult following thanks to its stark viewpoint and spare acting. The movie became the first Hollywood noir inducted into the National Film Registry by the Library of Congress in 1992