9-year-old Sués life hangs by a thread. Together, his father and brother take the risk of taking him out of the hospital to start a journey for keeping a promise forgotten over the years, in a race against the clock.

The arrival of Juan, who has been away from the family for years, profoundly alters the life of Mario, who seems to have "mortgaged" his life in the care of his mother and the cancer that now has her in a terminal phase.