On every street in every city, there's a nobody who dreams of being a somebody. He's a lonely forgotten man desperate to prove that he's alive.

Disrguntled war vet and cabbie Travis Bickle (DeNiro), a lonely man obsessed with pornography and violence. As events in Travis' life begin to turn for the worse, he slowly descends into the depths of his own paranoia, driving away the one woman willin to love him, eventually exploding in an orgy of killing against the "scum" of the streets he hates so intensely.