Luther: The Fallen Sun

 is a crime movie about John Luther, who has to break out of prison to hunt down a serial killer. It serves as a continuation of the British series of the same name.

Summary
"Haunted by an unsolved murder, brilliant but disgraced London police detective John Luther breaks out of prison to hunt down a sadistic serial killer."

- Official Netflix synopsis

"In Luther: The Fallen Sun — an epic continuation of the award-winning television saga reimagined for film — a gruesome serial killer is terrorizing London while brilliant but disgraced detective John Luther (Idris Elba) sits behind bars. Haunted by his failure to capture the cyber psychopath who now taunts him, Luther decides to break out of prison to finish the job by any means necessary. The film also stars Cynthia Erivo, Andy Serkis and Dermot Crowley, who returns as Martin Schenk."

- Official Netflix logline

Plot
John Luther and Odette Raine are Detective Chief Inspector working together to track down David Robey, a millionaire cyber killer with a taste for sadism. David is a maniac operating a twisted "red room" that streams horrific violence around the world. He tries to find a community on the dark web to exist within and operates as if he's trying to draw an audience, much of which is born out of his loneliness and isolation.

John Luther and Odette Raine go to Estonia to track David down. When they enter the "red room", David has abducted Odette's daughter Anya and threatens to suffocate her.

Luckily, John has information from David's ex-wife, Georgia. As he reveals David's name and insecurities on the live stream, he makes a desperate escape, with Luther in pursuit. Odette and Anya are left behind to escape Robey's incineration trap.

At the end of their chase, Luther and Robey both wind up plunging beneath the surface of an icy lake, where David drowns. Meanwhile, John is picked up by his old friend Martin Schenk, and brought to a mysterious new location.

Cast and Characters

 * Idris Elba as Detective Chief Inspector John Luther
 * Cynthia Erivo as Detective Chief Inspector Odette Raine
 * Andy Serkis as David Robey
 * Dermot Crowley as Detective Superintendent Martin Schenk
 * Thomas Coombes as Archie Woodward
 * Hattie Morahan as Corinne Aldrich
 * Lauryn Ajufo as Anya Raine
 * Vincent Regan as Dennis McCabe