SUK SUK is a quiet portrayal of a gay relationship between two men in their twilight years. PAK, 70, a married taxi driver who refuses to retire meets HOI 65, a retired single father. Although both are secretly gay, they are proud of the families they have created through hard work and hardship over the years. HOI is a member of the Mature Tongzhi Society, a social group, which caters for gay men who are over 60. The group is planning to attend a public forum to request the government to create senior citizen homes dedicated exclusively for gay people. However, due to the fact that most men in the group are in the closet, there is no one who is willing to voice their opinions in the public forum. HOI supports the notion of a gay senior citizen home and considers speaking in the public forum. However when HOI begins to wonder whether his son WAN suspect he is gay, his attitude shifts. As PAK and HOI fall in love they contemplate a possible future together. SUK SUK studies the subtle day-to-day moments of the two men as they struggle between conventional morals and their personal desires.

The story of two closeted married men in their twilight years, one day Pak, 70, a taxi driver who refuses to retire, meets Hoi, 65, a retired single father, in a park. Despite years of societal and personal pressure, they are proud of the families they have created through hard work and determination. Yet in that brief initial encounter, something is unleashed in them which had been suppressed for so many years. As both men recount and recall their personal histories, they also contemplate a possible future together.