At the crossroads of documentary and fiction, Hello Stranger relates the transition journey of a young trans woman named Cooper Josephine. With humor, the film revisits key moments of her life from her childhood in a small fishing village of the east coast of Canada to her tumultuous medical process. Through the re-enactment of her memories, Cooper Josephine attempts to make peace with the last masculine imprint on her body: that unfortunate deep voice that sticks to her skin.