In a subterranean metropolis sealed beneath an artificial sky, an ethereal flame suspended overhead sustains the entire civilization, and a young woman holds the crucial duty of channeling this mystical fire during the city's annual ceremony. Her ordinary existence fractures when a stranger appears bearing a single rose, and from that night forward, her sleep becomes plagued by unsettling visions that blur the line between dream and reality. She awakens to discover herself trapped within a temporal loop, forced to relive the same span of days in search of an escape that might lead somewhere better than the catastrophic ending she has already witnessed. As time collapses and reforms around her, she must navigate this cyclical nightmare to uncover fragments of hope and meaning amidst the repeating moments.