Watch Sonder (2026) Official Trailer

“When I die, I want the birds to pluck at my brain, and carry my memories across the world”

Callum, a struggling writer, finds inspiration for his next script in a mysterious notebook. As he begins to adapt its pages, Callum's idea of reality and fiction becomes intertwined. Losing himself in his new reality, Callum must try to separate himself from the clutches of the unknown, original author. Who are they? And what do they want with Callum?