Affair: wife's younger sister
Youngju and Jaesik are enjoying a happy married life. One day, Eun-ju, a college junior, comes to their house and stays with them for a while. When her wife, Yeong-ju, goes to work, and Jae-sik, who writes and works from home, is left alone, Eun-joo begins a persistent and daring seduction for her usual favorite, Jae-seok. Will Jae-sik be able to withstand the temptation of Eun-ju?
Top cast
Below are the streaming services currently carrying the movie “Affair: wife's younger sister” in Canada, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in Canada can differ from other countries.
Where to watch Affair: wife's younger sister in Canada
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Not currently available on the supported providers in Canada.
Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 15 Sept 2026.