The panic in Needle park

It's the upper west side of Manhattan in the area around Sherman Square, which is euphemistically called Needle Park for the propensity of intravenous drug use there. Bobby is a smaller time drug dealer and deludes himself that his own use is not an addiction. Helen is Marco's girlfriend, he one of Bobby's customers. It is through this connection that Bobby and Helen become friends, then more than just friends. Bobby exposes Helen to that drug use. Despite their continual declarations of love to each other and the want to get married, Bobby and Helen, by their actions, are more in love with heroin and the need to get the continual fix. Not having the temperament to keep a steady "traditional" job, Helen does whatever she needs to get the money for what has become her $80 per day fix. This fixation on the drugs for both Bobby and Helen may lead to an incompatible set of priorities, especially when the police get involved.