How to live in this world

Young-wook and Yeon-kyung have been married for 10 years and are slightly worried about their estranged relationship. With their love life decreasing, the two begin to seek attraction elsewhere. Yeon-kyung meets Min-sik, a gallery customer, and falls in love with his charm. Meanwhile, Young-wook meets a debtor's ex-wife in search of a dormant debtor and cannot resist the temptation to sleep with her. In the end, they both find themselves examining love and will the two recover their happiness as when they were first married?