All About My Wife (2012) on Netflix

Plot summary

Seven years into their marriage, Jung-in's endless nagging and complaining have pushed Doo-hyun to the point where he wants out, though he dreads the fights a divorce would set off. When his company transfers him to another part of the country, he believes his escape has arrived, until Jung-in moves across the country to be with him. Too afraid to ask for a divorce himself, he turns to Sung-ki, the legendary Casanova who lives next door, and asks him to seduce Jung-in so that she will end the marriage instead. Sung-ki looks the situation over, takes an interest in the challenge, and agrees to make her his career finale. Doo-hyun has also arranged a spot for Jung-in at a local radio station, where she talks about life's injustices.