Two brothers (Humberto Busto, Fernando Álvarez Rebeil) and a detective (Raúl Méndez) who is chasing them get stuck on the staircase of a nine-story building, which suddenly becomes an infinite staircase cut off from the outside world, with no way in or out. At the same time, a family traveling on a deserted highway heading for the beach is suddenly stuck on an infinite road, on which the sunlight and landscape never change, and their destination is never reached. As the two initially disparate narratives begin showing similarities, it becomes increasingly clear that both risk being stuck in these time loops forever.