High schooler Greg, who spends most of his time making parodies of classic movies with his co-worker Earl, finds his outlook forever altered after befriending a classmate who has just been diagnosed with cancer.

Based on David Levithan's acclaimed New York Times bestseller, Every Day tells the story of Rhiannon (Angourie Rice), a 16-year old girl who falls in love with a mysterious soul named "A" who inhabits a different body every day. Feeling an unmatched connection, Rhiannon and A work each day to find each other, not knowing what or who the next day will bring. The more the two fall in love, the more the realities of loving someone who is a different person every 24 hours takes a toll, leaving Rhiannon and "A" to face the hardest decision either has ever had to make.