The film is structured as a passion play. The Turning Point is the death of Luke's mother; this severs his last tie to the outside world and leads to his 'entombment' in the box. The Climax occurs when Luke escapes for the final time and enters a church. He has a one-way conversation with God, asking for a sign, but is interrupted by the police.
The Twist/Ending: Dragline, trying to save Luke, inadvertently leads the police to him. Luke, realizing his time is up, mocks the Captain with his own line ("What we've got here..."). The Man With No Eyes (Godfrey) shoots Luke in the neck. Luke dies smiling. In the final scene, Dragline tells the other inmates about Luke, creating a myth. The visual of the cross-shaped road confirms Luke has transcended from man to legend/martyr.