Butter: A Novel of Food and Murder ― The Cult Japanese Bestseller about a Serial Killer Cook

INTERNATIONAL BESTSELLER

The cult Japanese bestseller, a literary thriller about a female gourmet cook and serial killer, and the journalist intent on cracking her case, inspired by a true story

There are two things that I simply cannot tolerate: feminists and margarine.

Gourmet cook Manako Kajii sits in the Tokyo Detention House convicted of the serial murders of lonely businessmen, whom she is said to have seduced with her delicious home cooking. The case has captured the nation’s imagination, but Kajii refuses to speak with the press, entertaining no visitors. That is until journalist Rika Machida writes a letter asking for her recipe for beef stew, and Kajii can’t resist writing back.

Rika, the only woman in her news office, works late each night, rarely cooking more than ramen. As the visits unfold between her and the steely Kajii, they are closer to a master class in food than journalistic research. Rika hopes this gastronomic exchange will help her soften Kajii, but it seems that Rika might be the one changing. With each meal she eats, something is awakening in her body. Do she and Kajii have more in common than she once thought?

Inspired by the real case of a convicted con woman and serial killer—the “Konkatsu Killer”—Asako Yuzuki’s Butter is a vivid, unsettling exploration of misogyny, obsession, romance, and the transgressive pleasures of food in Japan.

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Published Oct 29, 2024

464 pages

Average rating: 6.24

419 RATINGS

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Community Reviews

katkoh
Jun 03, 2026
8/10 stars
Many of my Book Club mates did not like this book because of how lengthy it was. They also complained about the general pacing. I learned a lot from reading this book and therefore very much enjoyed it. I think this book is about pornography – food, porn, description, porn, and even psychoanalysis porn that Kaji and Rika engaged themselves in on her prison visits. It is my understanding that in Japanese culture, men are freely able to watch all kinds of pornography, a great diversity of options. I do not think that extends generously to women as well. My pet theory is that the author set out to Wright food, porn, relationship, porn, and literary porn for Japanese women. You could easily read this book on the subway and people would think you’re reading a high caliber best selling piece of new fiction. Hidden underneath all those accolades and high standing is a romance novel and softcore pornography that Japanese women can enjoy. What makes it more subversive is that it is underneath a topic that most Japanese women struggle under which is homemaking duties misogyny and a sense that they need to be excellent at cooking Cleaning and hosting. There are two big questions that arose for me and I’m going to be thinking about for a while: number one: is it possible to murder someone through love bombing manipulation, and then withdrawal? How does the American literary industry, which privileges fast moving propulsive, plots and narratives, affect our reading of translated fiction like Butter?
Lisa HP
Jun 09, 2026
2/10 stars
This was so boring and over detailed. Not to mention how many times I had to read the word butter. I got half way though and just could not take it anymore. If you like slow and boring then go for it.
Shantallb
May 28, 2026
4/10 stars
Character names and storylines kept confusing me, I felt no connection to the actual characters only a slight interest to Kajii, and it was a struggle picking up the book at times. Slightly interesting, for being a thought piece on how women are treated in society it only barely touches it rarely throughout the book.
Misbah
Nov 02, 2025
The Horton Saturday Book Club Mean average rating: 7.16 Scores in full: 7 7 8 5.5 8.5 7.5 6 7.75
QuiteContrary
Aug 29, 2025
9/10 stars
Excellent book.

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