I watched this a few days ago. The film is slow-paced, slice-of-life, nothing dramatic, but the tone is heavy and sad throughout. The sorrow sinks deep in your heart even after ending. The story of our female lead feels too familiar, I think any office lady around 20-30 can relate to her somehow even without having vertigo. I don't say it's a "love story", but more like a human story, about how even very simple things can save someone's life.
The filming angle is particularly accurate when portraying "vertigo" from the female lead's view point. Also great music that heightens moments of hopelessness and depression.
Chun Woo-hee carried another big role after Han Gongju, and she totally delivered. I have always been her fan, and although she had more famous projects like The Wailing/One day/Argon/Be Melodramatic, I still think this is her BEST role to date after Han Gongju. Hope the film can get Eng sub soon, and I really anticipate her next films to get released (Anchor, Rain and Your Story)