The Last Letter from Your Lover

The film interweaves two timelines connected by a series of secret love letters. In 1965, wealthy socialite Jennifer "Jenny" Stirling wakes from a car accident with significant memory loss, unable to remember her life before the crash or feel any connection to her cold industrialist husband, Laurence. Recovering, she discovers a passionate letter addressed to "J" signed by "Boot" and begins piecing together a forbidden love affair she cannot remember. Flashbacks reveal that she had met Anthony O'Hare, a financial journalist assigned to write a profile of Laurence, and the two fell into a deeply romantic affair, exchanging clandestine love letters under their pseudonyms while Jenny was trapped in a loveless marriage of convenience. Anthony urges Jenny to leave her husband and start a new life with him. She agrees and attempts to flee to join him at Marylebone station, but a car accident on the way kills her companion Felipe and wipes her memory, leaving Anthony to board the train alone, believing she chose not to come. Laurence, aware of the affair, intercepts Anthony's final letter and conceals it from Jenny, falsely implying Anthony is gone from her life. The lovers briefly reunite in 1969, but Jenny, now with a young daughter, cannot bring herself to leave. They lose contact entirely, each living with regret. Jenny eventually entrusts the letters to a newspaper editor, hoping they might somehow reach Anthony. In the present day, London journalist Ellie Haworth, recently out of a long-term relationship, is researching an obituary for her paper's recently deceased editor when she stumbles upon a misfiled love letter—the same correspondence between "J" and "Boot"—in the newspaper's archive. Captivated, she enlists the help of reluctant archivist Rory to track down the identities of the two lovers and learn how their story ended. As Ellie digs deeper, she grows emotionally invested in the case and develops a tentative romance with Rory. Her research reveals that both Jennifer and Anthony are still alive, each having spent decades in regret. Ellie persuades Anthony to write one last letter inviting Jenny to meet him at Postman's Park—the place that held meaning for them—and delivers it herself. The film closes with Jennifer and Anthony finally reuniting at the park, decades of separation resolved in an emotional embrace, while Ellie and Rory watch from a distance, their own budding relationship quietly affirmed by witnessing the power of enduring love.

Sources: Wikipedia, dmtalkies.com, plotexplained.com