On the anniversary of their mother's death, three sisters in contemporary Hanoi meet to prepare a memorial banquet. After the banquet, the calm exteriors of the sisters' lives begin to give way to more turbulent truths, which will affect their seemingly idyllic relationships. The eldest sister has a small boy nicknamed Little Mouse, and botanical photographer husband Quoc, who is prone to long absences from home. The middle sister has recently discovered that she is pregnant to her husband Kien, who is a writer suffering from writer's block. The flirtatious youngest sister constantly fantasises about being pregnant, and lives with her brother Hai, for whom she has a deep affection. With the brilliant Vietnamese summer as a setting, Vertical Ray of the Sun is beautiful from beginning to end, a charming, slow-paced, face value, family saga film.