Maddy Whittier lives in a house that, like the Mars biosphere training facility, is completely sealed off from the rest of the world – because Maddy has Severe Combined Immunodeficiency (SCID), making her essentially allergic to almost everything.
When Olly Bright’s family moves in next door, he notices her looking out her window and is intrigued.
Based on the novel by Nicola Yoon, Everything Everything is a story of first love/coming of age/indomitable spirit.