When beloved physics author Addie Rose dies after a short illness, her husband Ethan Riley is left unmoored-until he discovers a hidden legacy she left behind: an Al-driven writing program subtly infused with her own voice.
What begins as a private act of remembrance soon transforms into something far more powerful: a luminous love story set along the autumnal backroads of Maplewell, the fictional New England village they imagined together. The novel they create captures hearts around the world and blossoms into a bestselling phenomenon-and Ethan’s private sorrow begins to find shape, meaning, and direction. But as the program evolves, Addie’s voice takes a darker turn. The gentle narrative gives way to something darker: a chilling thriller threaded with disappearances, buried crimes, and a secretive family that spans generations. A relentless investigator stalks its pages. The names grow familiar. The places real. And Ethan begins to wonder if the story is no longer fiction at all. Is Addie guiding him toward a hidden truth? Or has grief blurred the lines between memory and imagination?
A genre-defying exploration of love, loss, and the stories that outlive us, All That Remains asks the most haunting question of all: when we open the door to memory, who or what-steps through?
