Shades of the Heart is a South Korean drama film directed by Kim Jong-kwan. The film follows the story of Chang-seok, a novelist who returns to South Korea after leaving his wife. He is planning to publish a novel based on his experience, but he meets different people who change his perspectives and inspire him to write a new story.
One of the people he meets is Mi-young, a quiet woman who works in a bookstore. They have a casual conversation, and Chang-seok is struck by her mysterious aura. He also meets Yoo-jin, an aspiring writer who asks him for advice on writing. Chang-seok is initially reluctant to help her because he believes that writing cannot be taught. However, Yoo-jin's passion and determination to improve her craft inspire him.
Chang-seok also crosses paths with Sung-ha, an old friend who is now a filmmaker. They reminisce about their youth and discuss their current struggles. Sung-ha reveals that he is working on a film about a notorious murder case that occurred years ago, and Chang-seok becomes interested in the story.
Lastly, Chang-seok meets Ju-eun, a woman who is going through a divorce and is struggling to hold onto her identity. Ju-eun's vulnerability and resilience touch Chang-seok, and he decides to write a novel based on her experiences.
Throughout the film, Chang-seok's interactions with these people influence his writing and his perception of love and relationships. Shades of the Heart explores the complex emotions and experiences of its characters and how they shape their lives.