She locks herself in a water tank and holds the hose that is filling it.
The tank is painted white inside and furnished: a chair with its legs cut down to fit, a stool for a table, a jug of white flowers. Three GoPro cameras are mounted inside it and film her from three angles, from the floor of the tank to its rim. Water runs in through the white fire hose she is holding, rises slowly, and finally closes over her, while she recites two sentences again and again.
The video is shown beside the tank itself, now empty and lit from within by a single circular lamp, so that it reads as a well, or a grave. A pump and a tap fill and empty it.
The hose is hers. Nothing is done to her that she is not doing.