H2O is a scientific lab, a water container, where primordialunicellular beings who grow, evolve and multiply, germinate. Visual pulsationsemerge from the dark, fragments of an unresolved identity, doomed to a restlessmobility. What remains is the reflex of light, the intuition of a placid collision,floating, fluid, elusive. Water, palpable container. It can be seen, it can beheard. A dive in a shaded universe of indefinite and mobile contours, for the onlypossible duration: that of the apnoea.