The sudden death of a young London man named Kai leaves his headstrong Chinese-Cambodian mother, Junn, and his boyfriend, Richard, each in a personal and profound state of grief. Feeling a strong sense of responsibility toward Kai's only family member, Richard reaches out to Junn, who has been biding time in an assisted-living home. Though Junn speaks little English, her dislike of Richard is plain, and she meets him with stony resistance. Since they share no common language, Richard hires a translator to facilitate communication, and the two improbable relatives attempt to reach across a chasm of misunderstanding through their memories of Kai.