Snow Flake (2011)

A college student in Hakodate, Japan lost her best friend 10 years ago. Since the tragic loss the girl hasn't talked. One day, the girl is asked to write a comment about a "forget-me-not" on a website. She writes about letting go of the past and to focus on the present day. Soon after however a man resembling her childhood friend appears in her life.

Unfortunately the movie Snow Flake is not yet available on HBO Max.