Through half a century Carl Nyrén won prestigious awards and was celebrated by critics all over the world. For the filmmaker Sven Blume he was a beloved grandfather. Carl often talked about architecture with his grandson and the house that he and grandmother Marianne lived in was a self-drawn masterpiece. But his role as an architect was difficult to grasp as a grandchild, only many years later Sven begins to take an interest in architecture. While Grandpa Calle is not alive anymore, his buildings remain open to the curiosity of his grandson.