Iris, a woman abroad in Seoul, teaches French and English in an idiosyncratic fashion that allows her to pursue her own philosophical and personal interests. Through four encounters over a single day, Iris probes students and strangers for information about poetry, their own histories, and their relationship to their egos.
A South Korean art house film director is first invited to serve on the panel of a film festival, then to guest lecture at a film school.
A film director who no longer makes films arrives in Seoul to meet a close friend. When the friend doesn't show up, he wanders the city aimlessly for three days, grabbing drinks and meeting women, with each day playing out like a version of the last.
Over drinks, two friends agree to swap fond memories of their recent trips to the same seaside town. As the stories unfold in flashback, it becomes evident their accounts take place at the same time and with the same people.
While her husband is on a business trip, Gam-hee meets three of her friends on the outskirts of Seoul.
In Seoul, a suicidal student meets a young woman who decides to join him in his fatal gesture. Dong-soo, an unsuccessful filmmaker, spots a beautiful young woman, who happens to be the lead actress in the film he has just seen. Their stories will cross paths thanks to their love for cinema.
Chun-su arrives in Suwon one day earlier than scheduled. He has a special lecture to give the next day. Chun-su decides to visit a palace and meets Hee-jung there. Hee-jung is a painter and she lets Chun-su see her workroom with her paintings. In the evening, they go out eat and drink together. There, Chun-su reveals something unexpected to Hee-jung.
Stymied by writer's block while crafting his latest script, director Kim Jung-rae persuades his friend Won Chang-wook to drive him to a beach resort where he promptly becomes involved with Chang-wook's girlfriend. Abandoning her and taking up with another woman, Jung-rae winds up creating enough drama to inspire his writing.
Oki, a film student, gets involved in two relationships as she navigates the advances of a fellow student and grapples with her feelings for her much older professor.
A young woman and her mother run away to the seaside town of Mohang to escape their mounting debt. The young woman begins writing a script for a short film in order to calm her nerves: There are three women named Anne, and each woman consecutively visits the seaside town of Mohang. A young woman tends to the small hotel by the Mohang foreshore owned by her parents. A certain lifeguard can be seen restlessly wandering up and down the beach that lies nearby. Each Anne stays at this small hotel, receives some assistance from the owner's daughter, and ventures onto the beach where they meet the lifeguard.
Young-hee, an actress reeling in the aftermath of an affair with a married film director, escapes to Hamburg. But when she returns to Korea and meets with friends for drinks, startling confessions emerge.
She has never lived in a high-rise apartment, and she wonders how her sister can live at this height every day. A few days ago she kind of burst into stay with her sister, and she is now becoming re-accustomed to life in Korea. While seeming to keep a grave secret to herself, she manages life one day at a time with a sense of mindfulness. Meanwhile a certain director, some years younger than her, has asked her to join his project, and after a polite refusal, they have agreed to meet for the first time today. Downtown Seoul is filled with narrow alleys that harbor tiny old bars, and that's where they meet. As they are getting drunk, there is sudden rainfall and thunder.
Youngho is summoned by his father, who is a doctor. Finding him busy with his patients, one of whom is a famous actor, Youngho has to wait. When his girlfriend Juwon moves to Berlin for her studies, Youngho shows up in the city to surprise her. Through her mother, Juwon has found accommodation at the home of an artist whose beauty intimidates her. Some time later, Youngho goes to lunch with his mother who wants to introduce him to a colleague – it is the same man Youngho met at his father's clinic. Youngho asks his friend Jeongsoo to accompany him, and after lunch they go to the beach. Youngho falls asleep, and dreams of Juwon. When he wakes up, he braves the considerable cold and goes swimming, while Jeongsoo watches.
Sunhi, a film major graduate, visits her school to ask her Professor Choi for a recommendation letter to study in U.S. Knowing the professor favors her, she expects a good recommendation from him. Out from her shell after a long time, Sunhi also ends up meeting two men from her past: Munsu, her ex-boy friend, and Jaehak, a director who graduated from the same film school. Through the encounters between Sunhi and the three men, they give each other an 'advice on life' with good intentions. The three men who all have strong interests in her are led to guess and define her, unable to tell how she really feels inside. Strangely, the mentioned advices and traits of her are similar and seem to pass from one person to the next. The words of 'advice on life' seem doubtable and slip away as the three men's thoughts on Sunhi become more and more irrelevant.
An aging poet summons his estranged sons to the hotel he is staying at because he feels his death is near; meanwhile, he encounters two women staying at the hotel.
Areum sits in a small café, typing on her laptop. Around her, customers enact various dramas from their lives. Is she writing what she hears or is she hearing what's been written?
On her first day at work, Areum replaces a woman who broke up with the boss. The wife of the boss finds a love note, bursts into the office, and mistakes Areum for the other woman.
Haewon, a college student, wants to end her secret affair with her professor, Seongjun. Feeling depressed after bidding farewell to her mother who is set to immigrate to Canada the next day, Haewon seeks out Seongjun again after a long time. That day, they run into her classmates at a restaurant and their relationship gets revealed. Haewon gets more agitated and Seongjun makes an extreme suggestion to run away together… Haewon dreams often. Her dreams will be compared to her waking life, but none can be denied as being a part of her life.
A novelist visits a bookstore run by a young colleague who's been out of touch, then takes a walk with a film director and his wife. She meets an actress and tries to convince her to make a film together.
Hong Sang-soo's Lost in the Mountains depicts Mi-sook's suffering when she discovers her friend Jin-young has been secretly sleeping with her lover.
