Luther The Fallen Sun: Plot Summary and Ending Explained

Luther: The Fallen Sun is a movie that follows up on the tv show, Luther. I have not seen the show, so I cannot speak to how connected they are, but there are characters present that are already developed. Regardless, watching the show is not mandatory to understand Luther: The Fallen Sun. If you are looking for a review, check it out here. Let’s jump into the story. Fair warning, there will be many spoilers in this article.

The movie begins in an office building where Callum, played by James Bamford, receives a ominous phone call from a mystery man telling him to leave the office and go to a specific location. The man threatens to tell everyone Callum’s big secret if he does not arrive at that location within 15 minutes. Frightened, Callum leaves immediately. He arrives at the location, which is the site of a crash between a car and a man. Callum calls the authorities and approaches the vehicle. The man who was ran over rises, and abducts Callum.

Detective John Luther, played by Idris Elba, arrives on scene the next morning. Upon arriving on scene, he discovers an intriguing thing about the victim inside the car. The victim disappeared 7 years ago, and appears to have been frozen in ice since. Luther discusses the scene with Martin Schenk, played Dermot Crowley, and then is approached by Callum’s mother, Corrine. Corrine is distraught and Luther promises to find Callum.

David Robey, played by Andy Serkis, is seen on the phone, talking about Luther. He asks the person on the other end of the phone to find every single secret about Luther.

A while later, Luther is arrested and found guilty of trespassing and other charges after a dossier is leaked. He is placed in a maximum security prison, with many criminals aware of who he is and what he has done. David continues to scheme and make phones as Luther is taken to prison. Computer screens are shown with head shots and other personal information.

Life in prison is not kind to policemen, and it is no different for Luther. He is transported around the prison with a security detail and is beaten to a pulp in the showers.

Callum’s mother receives a phone call from her son, and immediately sets out to track him down. She arrives at a large house with the door slightly ajar. When she calls Callum’s phone, she can hear it ringing within the very large house. She finds the house empty, but can still hear the phone ringing, She enters the basement as other people begin to arrive. She opens the door to where the phone is ringing, and finds multiple people hanging from the ceiling. All of their phones in a circle.

Their parents or loved ones arrive at the same moment. The cell phones in the room combust and light the room on fire. A creepy man is seen in the window to the basement who’s face is covered by a screen of sorts.

The police arrive on scene the following day to investigate the bodies and the following fire. Luther receives a letter with the number 65.8 on it. He sets his radio this channel, where he hear Callum’s dying screams, followed by a message from David Robey. David admits he visited Luther at a bus stop to test if Luther would sense he was the killer. David also admits her was the one who placed Luther in prison.

Callum’s mother comes to visit Luther in prison minutes after he receives the radio message. Corrine has nothing positive to say and leave shortly after arriving. She gets into a car to leave, driven by David. The pair leave the prison.

Luther, with a cellphone hidden under his mattress, calls Detective Odette Raine, played by Cynthia Erivo, to inform her of the radio message. She brushes him off, and informs him that he is not the only one to receive the recording. After the initial call, Luther makes a second call to Dennis Mccabe, played by Vincent Regan, asking Dennis to break him out of prison. Dennis is reluctant, but he agrees to help Luther. Luther has his phone confiscated immediately.

Luther talks a guard into getting him transferred that night by allowing the inmates to attack him in his cell. After the guards are tricked by one of the inmates, a massive prison riot ensues. Luther fights his way through the prison , eventually being caught by the prison guards. He is then transferred to another prison via a truck.

While driving Luther to his next prison home, the truck is stopped by men in masks and broken into. Luther is freed by these men and taken away. They arrive at a shoty looking warehouse, where Luther had stashed a car.

Detective Raine has breakfast with Martin the following morning, where she ask him to help her find Luther. Martin visits the prison to investigate Luther’s cell and look for clues. At the same time, Luther is tracking the location from where his radio message is being transmitted. Martin quickly determines that Luther will be trying to track down the signal and this is how Raine will find him.

Luther arrives at the location from where the signal is coming from, but is met at the door by a man who doesn’t want to let him in. After some questions, the man attempts to run but is caught by Luther. After Luther threatens to tattoo the man’s eyeball, he gives Lithesome information about the mystery man who left the transmitter in the shop. The man tells Luther about how he was catfished and then blackmailed by whomever left the transmitter at his shop.

The police arrive as Luther is interrogating the man, and the conversation is cut short.

A video shown minutes later shows that David has at least 12 people in captivity. A variety of monitors and people are shown invading people’s privacy and gathering information on them. Secrets, big or small, and whether they could be targets or not are tracked in a large spreadsheet.

Luther calls Martin to get him to trace the phone number he got from the man at the tattoo parlour. After some arguing, Raine and Martin agree to trace the number and inform Luther of the location. The police set their trap, certain they will catch Luther and potentially a serial killer in one go.

Both the police and Luther arrive at Piccadilly Circus, where the cell phone is located. People are seen standing on top of buildings with cameras attached to their chests. The junction is packed with people, but Luther identifies his suspect, who we know to be David Robey. David takes a man hostage as the police and Luther convene.

At that moment, people begin to jump from their places a top a verity of different buildings around Piccadilly Circus. Chaos ensues as Luther and David escape the police. Luther chases David into the subway, where they eventually fight. A policeman attempts to arrest both the men, but is instead stabbed by David. David escapes as Luther attempts to save the policeman.

It is revealed that Archie, one of the men working closest to Detective Raine, is actually working for David. Archie is also being blackmailed by David with a dirty secret Archie wants nobody to know.

Raine’s daughter is abducted shortly after by David. Luther arrives at Corrine’s home. Luther explains that Callum had some secret that David used to blackmail Callum to death. He reveals that Corrine probably knows who the killer is, someone who entered her life after Callum died. It takes a moment but Corrine realizes her new friend ‘Tommy’ killed her son.

Raine gets a phone call from her screaming daughter, and a message from David. He tells her that she has to deal with Luther and tell nobody his name in order to get her daughter back. Raine releases Martin from his duty to help the police, pretty much firing him. She then phones Luther and tells him she has discovered the identity of their killer. Raine says she will only give up the name in person to Luther.

The pair meet up, where Detective Raine tells Luther about David. She then forces Luther into the trunk of her car. After a moment, Luther convinces Raine that they have to catch David instead of bending to his blackmail if they wish save her daughter. The two detectives visit Georgette, David’s wife. Georgette is scared and unwillingly to share any information until Raine reveals that David has Raine’s daughter.

Luther and Raine set off for Norway, but Archie finds out after Raine’s passport alert is activated. David knows immediately who has told Raine where he is and orders Archie to kill Georgette. As Archie is about to kill Georgette, he is caught by Martin. Martin confronts Archie, and Archie turns his syringe on himself.

Luther and Raine reach the end of their road, and have to walk the remaining 1.5 miles to the compound. As they near the house, they find the dead bodies peaking between patches of snow beneath the ice. Raine hears her daughter screaming inside the house and runs inside. She finds her daughter, much like Callum was, hung in a circle with other bodies.

Luther discovers a series of doors that lead to an underground bunker below the house. He is attacked by David, and then tied up in the middle of the main room. Luther is strung up in a chair, suspended by a chain. The footage is displayed across the internet, seen by many people watching via the cameras David had set up.

David asks Luther questions, lifting Luther off the ground when his answers aren’t satisfactory. David brings Raine in next, revealing her daughter is actually alive. David picks a knife from his table of deadly weapons and tells Raine to stab Luther. When she refuses, her daughter is strangled by a man in the next room.

Unable to let her daughter die, she stabs Luther. Following this, Luther is told to break Raine’s kneecap with a hammer. Luther is unable to do so, and instead tells everyone that the police know where they are. The viewership of David’s ‘Red Room’ begins to drop off drastically as Luther continues to speak. Luther continues to egg David on, until he gets very angry and reacts poorly.

His henchman tries to attack Luther but is taken out instantly. David runs out of the room, attempting to seal the door behind him. Luther makes it out in time, following David. Raine and her daughter are stuck in the main bunker room as a burn sequence commences. After fighting off the last henchman in the room, Raine and her daughter struggle to turn the water valve to prevent the fire.

As Luther tracks David through the bunker, he see a bunch of others that have been abducted. David tries to escape in a vehicle, but Luther catches up to him before he can drive away. The two battle for control of the vehicle and David’s phone, which controls all of the doors inside the bunker.

The vehicle jumps over a hill, and on the way down, smashes through the ice. The pair fight underwater, and David flees the vehicle. The only problem is once he reaches the top of the ice, he is unable to find the the opening. Ironically, David dies in the same place many of his victims were placed. Luther manages to escape the ice, and Raine and her daughter escape the bunker.

Luther is arrested, but as he has life-treating injuries, he is taken to the hospital. When he wakes, he is in a government safe-house. A bunch of men arrive at the safe-house and offer Luther a job.

It seems from the ending of Luther: The Fallen Sun, a second movie will be coming sometime in the near future.