Bad Lieutenant (1992)

A police Lieutenant goes about his daily tasks of investigating homicides, but is more interested in pursuing his vices. He has accumulated a massive debt betting on baseball, and he keeps doubling to try to recover. His bookies are beginning to get agitated. The Lieutenant does copious amounts of drugs, cavorts with prostitutes, and uses his status to take advantage of teenage girls. While investigating a nun's rape, he begins to reflect on his lifestyle.