Traveling through the gap between memory and phantom, just to resurrect a phantom that never existed. On the never-ending soul train, memory is both currency and shackles. Top memory surgeon Lu Chuan, in order to resurrect his daughter who died young, did not hesitate to wander on the edge of darkness to collect forbidden memories. However, a rebellion by the shadows of the exploited sweeps through the carriage, aiming to destroy the entire memory system on which he relies. When the reverse-time pocket watch he inherited reflects a strange warmth, and when the truth he pursues points to the emptiness of his own memory, Lu Chuan must make a choice: to protect the fictional obsession and maintain this eternal running cage; or to embrace the cruel freedom and end the train's journey with his own hands. This is the ultimate surgery on existence, memory and love.
