Extreme Measures (1996)

At New York's Gramercy Hospital, a homeless man under the care of English doctor Guy Luthan (Hugh Grant) dies in a horrific manner. Soon both the patient and his file mysteriously disappear. The puzzled Luthan is told by a superior to forget about it and move on. Undaunted, Luthan conducts his own investigation--and uncovers a scandal in which homeless people are being used as human guinea pigs in the name of science. The moral Luthan wants to put a stop to this, but doing so may cost him his career--and his life.