All Shall Be Well sensitively portrays the enduring love and relationship of a long-term lesbian couple, Angie and Pat. The film explores the profound challenges faced by the surviving partner after a loss, particularly concerning family acceptance and legal recognition in Hong Kong. It depicts themes of grief and the vulnerabilities of same-sex partnerships with dignity and empathy, affirming the validity of their bond.

The film champions a long-term same-sex partnership and the strength of chosen family bonds, contrasting them with the limitations of traditional family structures and their legal implications.