Magma, subjected to constant, enormous pressure, bubbles deep beneath the earth's surface. No one sees it, no one hears it, no one feels it. Until one day it explodes... Ninel, an 8-year-old girl, spends her vacation at the lake with her mother and sister. The girl's idyll is interrupted by the arrival of her mother's new boyfriend, who awakens in Ninel what was deeply hidden. Reality begins to fall apart. Does Ninel feel what she feels? Does he see what he sees? Does reality exist? The film illustrates how childhood trauma affects perception.