Harold Fry (Jim Broadbent) is an unremarkable man who has made mistakes with all the important things: being a husband, a father and a friend. And now, well into his 60s, he is content to fade quietly into the background of life. Until, one day – Harold learns his old friend Queenie (Linda Bassett) is dying. Harold leaves home, walking to his post office to send her a letter. And out of the blue, Harold decides to keep walking, all the way to her hospice, 450 miles away.

https://www.themoviedb.org/movie/844409-the-unlikely-pilgrimage-of-harold-fry