The film is a continuation of the BBC series with Luther in pursuit of a killer he failed to catch. "Luther: The Fallen Sun" picks up with John Luther (Idris Elba) disgraced and in prison after the events of the series. Check out the trailer for 'Luther: The Fallen Sun'Idris Elba and Dermot Crowley each reprise their roles from the "Luther" series. How to watch 'Luther: The Fallen Sun'You can watch "Luther: The Fallen Sun" at home exclusively on Netflix. How to watch 'Luther: The Fallen Sun' outside the USIf you're traveling outside the US, you might be in an area that doesn't have streaming access to "Luther: The Fallen Sun."

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