Family Matters (2006)

Once a promising young dancer, Min-kyung now runs a small, shabby dance school in town, and her entire family is notoriously troublesome, which makes her life harder. Her father Won-jo is a dotard, her husband Sang-hoon, who aspires to become a film director but can't get himself to finish a screenplay, is jobless, and her son is reckless and calls his dad "Uncle." However, she manages well enough despite everything--until the day she finds out that her husband is cheating on her.