A cross-country trip to sell drugs puts two hippie bikers on a collision course with small-town prejudices.

This movie is a stark portrayal of life among a group of heroin addicts who hang out in Needle Park in New York City. Played against this setting is a low-key love story between Bobby, a young addict and small-time hustler, and Helen, a homeless girl who finds in her relationship with Bobby the stability she craves.