Hazel (Shailene Woodley) is a beautiful 16-year-old girl. She is in her golden age and should enjoy the joy and hope brought by life and youth like other people of the same age, but the ruthless disease has found Hazel, a lung cancer patient. Although her condition has improved recently, Hazel's mood has not been relieved. The shadow of cancer recurrence at any time and the uninterrupted treatment are always with her, making Hazel almost lose all her enthusiasm and hope for life. By chance, Hazel met a handsome boy named Augustus (Ansel Elgort) in a cancer support group. He was suffering from bone cancer. The two young people with similar circumstances soon got closer and closer. Together, they explored the small world left to them by God, and Hazel also saw the future and hope.