Eighteen-year-old Cayenne barely remembers her mother, who died of breast cancer when Cayenne was four. The women in her family have a history of dying young. Cayenne figures she'll meet the same fate, so she might as well enjoy life now, engaging in death-defying risks like dodging trains and jumping off cliffs with her boyfriend. When Cayenne receives a series of video messages her mother made for her before dying, she isn't sure she wants them....