The film was inspired by Claire Wineland , who suffered from cystic fibrosis. Teenagers Stella Grant and Will Newman have cystic fibrosis CF , a progressive genetic disorder that damages organs and makes patients vulnerable to infections. Because of their compromised immune systems, patients with CF should get no closer than six feet to each other. Stella, who copes with her illness by trying to maintain control of her daily regimen, takes her medication religiously and follows doctors' orders precisely.
Will, a cynical rebel whose prognosis is grim, is much more lackadaisical, an attitude that frustrates the meticulous Stella.
Will has contracted B. Stella has been on the transplant list for a very long time. When Stella discovers that Will is not doing his treatments, she tries to help him. In return, he only asks her for permission to draw a picture of her. Will begins to watch Stella's social media videos. Over time, they begin doing their treatments together. Will and Stella fall in love, but they can't get closer than six feet to each other.
Her G-tube becomes infected, so she has to undergo surgery to get it replaced. Will discovers that Stella's sister Abby, who unfailingly cared for Stella, died from a botched daredevil stunt one year ago. Because Abby is dead, Stella must face the operation alone, while wracked with survivor guilt. After learning of Abby's death, Will shows up to support Stella, and he sings her the song Abby always sang to her before surgery. As Will leaves Stella's surgical prep room, he is caught by nurse Barb.
She tells him about two young people with CF who died after they fell in love and broke the six-foot rule, contaminating each other. Will realizes he loves Stella too much to endanger her, so he tells her he can't see her anymore. Stella becomes upset and angry but eventually plans to meet Will.
