In mid-90s Mexico City, five young siblings are left in the care of their grandmother after their parents suddenly disappear. As they fight to survive, the line between reality and something darker starts to blur. The grandmother, haunted by eerie visions and deepening fears, becomes more distant, while the children’s grip on reality begins to unravel. After a clash with their neighbors, the siblings withdraw even further into isolation, cutting themselves off from the outside world.

In search of brotherly connection, 12-year-old Beto skips his first day of school to follow Ramiro, his apathetic older brother. A carefree outing on a scorching late-summer day in Mexico City is abruptly interrupted when they discover that their father is having an affair. The weight of the secret fractures the family's fragile harmony, as a storm – both emotional and literal – forces Beto to decide whether to remain silent or confront a painful truth.