Dark City is a 1998 neo-noir science fiction film depicting urban repression and mechanism. It has been interpreted as a retelling of Plato’s Allegory of the Cave.
In the allegory, people live in a cave, chained to a wall, unable to see the real world. They only see shadows cast upon the wall which are as close as the people get to viewing reality. Everything they know of their world is from what they experience and see. Thus, the shadows become their reality. If someone escaped, he could perceive the true form of reality rather than mere shadows.
John Murdoch awakens alone in a strange world with no memory of who he is. He is pursued by a group known as “strangers” as he struggles with his amnesia and what his purpose in this world is. He begins to uncover clues that there is more to the world than meets the eye.
As he discovers the truth, he finds there is more to humanity than our memories. There is an element of soul in each of us which cannot be removed or altered despite having our memories tampered with. Murdoch uses his knowledge and will to fight for the fate of the city and its inhabitants.