Rush (1991 film)

Rush is a 1991 American crimedrama film directed by Lili Fini Zanuck wife of producer Richard Zanuck and based on a novel written by Kim Wozencraft. It stars Jennifer Jason Leigh and Jason Patric as two cops in the 1970s who go in too deep on a case a narcotics detective and his inexperienced partner go after an elusive drug dealer. They become drug addicts themselves and, failing to get the evidence they need, use falsified evidence.

Raynor explains to Cates that all they will have is each other in this assignment. They are caught between the legal world and the illegal underworld, belonging to neither and able to trust only one another. Though initially startled by Raynors intensity, Cates insists she is capable of doing whatever it takes to get the job done. Later at Raynors apartment, he teaches Cates how to properly shoot up heroin. Cates informs Raynor that she was instructed how to fake drug use at the police academy, which prompts a strong rebuke from Raynor. He informs her in no uncertain terms that she will be put in situations where she will have to take the drugs they will be buying. The drug dealers they will be doing business with are not stupid, and if she tries to fake drug use in front of them, she will get both of them killed.Raynor and now Catess main objective in their operation is to take down the cunning, mysterious, and powerful Will Gaines Gregg Allman. While Raynor and the police department is certain Gaines is the main drug boss in the town, Gaines is an expert at avoiding detection, and deeply mistrustful of Raynor. Unable to secure access to him, Cates and Raynor buy large quantities of drugs from minor dealers in the town. These drugs are cataloged and given to Dodd, along with information detailing from whom they bought the drugs. Raynor and Cates quickly go from pretending to be lovers to the real thing. ........

Source: Wikipedia