The story is about how two people are able to communicate with each other despite being separated by a two year gap through a magical post box. This is an adaptation from the Korean film "Il Mare" which starred Jeon Ji Hyun who is the main actress in "My Sassy Girl".
Knew how the story would develop as I had seen "Il Mare" before. So, I wasn't surprised by some of the twists and turns in the plot. It was interesting to see Keanu Reeves and Sandra Bullock collaborate together again since "Speed"! This film is much more quieter than "Speed" but their chemistry remains!
Internet Movie Database Link