In August 2005,
New Orleans police sergeant Terence McDonagh is evacuating a police precinct during
Hurricane Katrina. While packing up another officer's locker, he notices paperwork indicating that a prisoner may still be present in the jail, which should have been evacuated due to rising floodwaters. On investigating, he finds a prisoner indeed about to drown; he and his partner, Stevie Pruit, mock the man's predicament and debate waiting for the
fire department to do the job, but ultimately McDonagh jumps in to rescue him. He suffers a back injury in the process and is prescribed
Vicodin to manage the pain. The department decides to treat the incident as heroic, and McDonagh is given a medal "for extreme valor in the line of duty" and promoted to
lieutenant. Six months later, McDonagh is now not only
addicted to
painkillers, but is habitually using several other drugs including
cocaine and
cannabis. His girlfriend Frankie Donnenfeld, a
prostitute, also does cocaine and they often share drugs. He has convinced Heidi, a former co-worker now in another police division, to bring him drugs sent to the
evidence room. He has become estranged from his father Pat, a recovering alcoholic, and his alcoholic stepmother, Genevieve. Over the course of the film, he uses his position as an officer to bully people and steal more drugs. McDonagh is assigned to investigate the murders of five
illegal immigrants from
Senegal, who were killed for selling drugs in a gang leader's neighborhood. The gang leader, Big Fate, has two associates: Midget and G. After both are arrested, Big Fate willingly comes to the police station with his lawyer. As they try to gather evidence against Big Fate, McDonagh goes back to a hotel room where he finds Frankie beaten by one of her clients, a seemingly well-connected man named Justin. McDonagh threatens Justin and takes $10,000 from him. Later on, a delivery boy who was an auditory witness of the murder scene goes missing. McDonagh finds the witness's grandmother, who works at a nursing home, and threatens to kill one of her patients to make her divulge where the witness has gone. The old woman has sent him to stay with her family in
England, to prevent him from getting involved in gang affairs. In addition to dealing with the murder investigation, McDonagh gets in trouble with his
bookie Ned for not paying his debts. What little money McDonagh has is given to a gangster who works for Justin. The gangster now requests $50,000 - five times the amount stolen from Justin - as compensation, and gives McDonagh two days to get it. As a result of his treatment of the old woman, McDonagh is on modified duty and his gun placed in the evidence room. McDonagh goes to Big Fate and they become partners, with McDonagh supplying Big Fate with police information. McDonagh now has enough money to pay off his debts to his bookie and uses his surplus earnings to place a new bet. During a celebration of the successful partnership between McDonagh and Big Fate, the gangster shows up, demanding his money. McDonagh offers him a cut worth more than $50,000 from a bag filled with pure heroin, but the gangster wants to take it all. Big Fate and his crew end up killing the gangsters. To further celebrate their partnership, McDonagh implores Big Fate to smoke crack cocaine with his "lucky crack pipe." He does, and McDonagh later plants the pipe at the murder scene of the Senegalese family. The department uses this new evidence to arrest Big Fate and his cronies, but when he and McDonagh are alone with Big Fate, McDonagh's partner Stevie threatens to kill Big Fate, as part of a ruse to steal his drug money. McDonagh is outraged at this idea and arrests Big Fate, showing that despite his addictions he can still perform his duties as an officer. McDonagh is later promoted to
police captain. One year later, McDonagh appears to be sober, as does Frankie (who is pregnant with McDonagh's child) and McDonagh's parents, but it turns out that McDonagh is still taking heroin. He encounters the prisoner whom he saved at the beginning of the film, and the man, recognizing McDonagh, exclaims that McDonagh saved his life. The man has been sober for almost a year and offers to help McDonagh finally escape his own addiction. McDonagh simply asks, "Do fish have dreams?" The two men in the
Aquarium of the Americas then sit on the floor with their backs against a wall-sized fish tank. ==Cast==