Tessa has just months to live. Fighting back against hospital visits, endless tests, and drugs with excruciating side effects, Tessa compiles a list. It's her To Do Before I Die list. And number one is Sex. Released from the constraints of 'normal' life, Tessa tastes new experiences to make her feel alive while her failing body struggles to keep up. Tessa's feelings, her relationships with her father and brother, her estranged mother, her best friend, and her new boyfriend, are all painfully crystallized in the precious weeks before Tessa's time runs out.