Forty years ago, searching for his place in the world, Nissim Kahlon made his home in a limestone cliff under Apollonia National Park, north of the Hertxliya coast. For years he lived without electricity or running water. Today Nissim continues to work on the home that he built ou of rocks, trash, and sand, while the sea, which he loves dearly, constantly gnaws at the house. After years of estrangement, Nissim suggests that his 18-year old son, Moshe, move in with him and inherit the cave. A complex relationship between father and son is revealed.