Diary of a Murderer and Other Stories

Kim Byeongsu , a former serial killer, has not killed in 25 years. He kept a meticulous diary of his murders, not out of a desire to relive them, but to avoid repeating mistakes. Now, he faces a new challenge: Alzheimer's disease is eroding his memories, including those of his past crimes. As he grapples with his fading mind, he becomes obsessed with protecting his adopted daughter, Eunhui , from a new threat. Byeongsu's frequent forgetfulness and confusion lead to a diagnosis of Alzheimer's . The doctor warns that his memories will gradually disappear, starting with the most recent. This terr

Lesson 1: Murderer's Diary Begins

This principle from Diary of a Murderer and Other Stories is backed by Young-ha Kim's extensive research and real-world examples. Understanding it deeply can shift how you approach decisions, relationships, and long-term planning in meaningful ways.

Lesson 2: Alzheimer's Diagnosis Revealed

This principle from Diary of a Murderer and Other Stories is backed by Young-ha Kim's extensive research and real-world examples. Understanding it deeply can shift how you approach decisions, relationships, and long-term planning in meaningful ways.

Lesson 3: Eunhui's Dangerous Suitor

This principle from Diary of a Murderer and Other Stories is backed by Young-ha Kim's extensive research and real-world examples. Understanding it deeply can shift how you approach decisions, relationships, and long-term planning in meaningful ways.

How to Apply Diary of a Murderer and Other Stories's Lessons

The real value of Diary of a Murderer and Other Stories lies in its applicability. After reading, the most important step is identifying which of Young-ha Kim's principles speak most directly to your current situation.

Consider keeping a journal while reading — noting where the ideas challenge your current approach and where they confirm what you already suspected. The friction of your own resistance often points to the most important insights.

Key Quote

"Murderer's Diary Begins" — Young-ha Kim, Diary of a Murderer and Other Stories

About the Author

Young-ha Kim is the author of Diary of a Murderer and Other Stories. The book reflects years of research, observation, and synthesis of evidence from multiple disciplines.