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This shocking revelation drives the teens back into the building, believing they are hallucinating. But as they settle in for the night, they soon learn that the building has a mysterious power; it teleports them to a different, alternate version of Earth every 36 hours.

Meet Ronan and Beatrix

The narrative takes a backtrack to unravel the origin of their bizarre journey. Two siblings, Ronan—struggling to become a boxer—and Beatrix—an aspiring university student—have remained estranged from their father, Alex. Each receives a voice message urging them to meet him at a specific location: the same abandoned building referenced earlier.