Kalju is a lonely arborist who lives on top of a hill deep in the forest. As if carrying a punishment, he drags long logs and heavy stones to his hill, like Sisyphus once did. Once Kalju was in love, once he got married and once he had a lovely daughter whom he admired very much. But he was heartbroken when his wife left him and took their 4-year-old child with her. Time has passed, but pain has remained. When the daughter finally calls him and announces that she is expecting a child of her own, “The Rock” (that is what the name Kalju means) is confused. For the first time in his life, he goes through his old diaries and recordings to figure out what went wrong 30 years ago. Against all odds and despite his age, Kalju has not lost hope of finding new love. To attract potential candidates, Kalju is going to erect the highest observation tower in the region.