The movie titled "The Pillow Book" draws its name from an ancient Japanese diary authored by Sei Shnagon, whose real name is believed to have been Kiyohara Nagiko—the very same name adopted by the film's protagonist. The narrative unfolds through the perspective of Nagiko (Vivian Wu), a model of Japanese descent living in Hong Kong. She embarks on a quest for a lover who can satisfy her cravings for both carnal pleasures and artistic expression through poetry and calligraphy.
This deep-seated longing traces back to her childhood in Kyoto, where her father, Ken Ogata, would adorn her face with symbols of good fortune. Celebrating her birthday, he would recount the Japanese creation myth while skillfully inscribing beautiful calligraphy on her skin. Additionally, her aunt, Hideko Yoshida, recites a collection of "beautiful things" from Sei Shnagon’s writings, telling her that once she turns twenty-eight, she will be the same age as Sei Shnagon when the book was penned, forging a unique connection between them.
Tragically, Nagiko learns that her father is at the mercy of his publisher, "Yaji-san" ([Yoshi Oida]), who demands sexual favors for the privilege of publishing his work. Early in the plot, the publisher orchestrates a wedding for Nagiko with his young apprentice, whose inadequacy as a partner becomes evident; he scorns her love for literature and shuns her desires for physical intimacy, even rejecting her plea to inscribe poetry on her body. This leads to a pivotal moment when he discovers her pillow book, igniting conflict that results in the destruction of their home and serves as the catalyst for Nagiko's departure.
Escaping the confines of her past, she relocates to Hong Kong. Though initially resistant to the idea, she learns to type to secure employment and eventually becomes a celebrated fashion model. Nagiko employs a maid, affording her the autonomy to explore her suppressed sexual desires. Yet, despite her newfound freedom, dissatisfaction lingers as her encounters with various lovers fail to meet her expectations—either they possess extraordinary writing skills yet lack passion, or they are ardent lovers but have poor penmanship.
At a local café, Cafe Typo, she meets Jerome (Ewan McGregor), a British translator who piques her curiosity with his linguistic flair. They venture into a private space where Nagiko invites Jerome to write upon her body in multiple languages. Despite her fascination, she cannot accept his handwriting and sends him away. To her astonishment, Jerome turns the tables by inviting her to inscribe on him: “Use my body like the pages of a book. Of your book!” This interaction ignites a revelation within Nagiko, prompting her to contemplate a dynamic she has never considered.
Intrigued yet fearful, she embarks on a series of romantic escapades, exploring her ideas by attempting to write on her lovers, only to find frustration. Hoki ([Yutaka Honda]), a photographer entranced by her, urges her to channel her passions into writing a book, facilitating her journey towards creative expression. However, upon submission, her manuscript faces harsh rejection from Yaji-san, revealing an unexpected and painful connection as it becomes clear that he is involved with Jerome.
Concocting a master plan, Nagiko resolves to utilize Jerome to reach the publisher. Their relationship deepens as they explore the artistic potential of combining their bodies—she writes on him while they indulge in their passions. Yet, strife arises when Jerome's commitment falters, leading him into a romance with the very publisher Nagiko despises. Devastated and betrayed, Nagiko channels her hurt into a series of revenge writings that become increasingly scandalous, capturing the attention and envy of Jerome.
As the plot thickens, Jerome finds himself in a dark place, culminating in a tragic misunderstanding fueled by desperate attempts to win back Nagiko's affections. Ultimately, when Nagiko discovers him lifeless, the weight of unresolved emotions surfaces, prompting her to etch The Book of the Lovers upon his still form.
The unfolding events paint a vivid and tragic narrative tapestry of desire, rejection, revenge, and the quest for identity against the backdrop of art and mortality. As she grapples with grief and loss, Nagiko navigates through her painful journey towards self-realization and artistic expression, leading to her ultimate confrontation with the forces that shaped her past. Finally, she lays her final work—the revelation of her identity and the intricate entanglements one last time—in an explosive climax that connects all her experiences, culminating in a poignant epilogue showcasing her as a mother, embracing the legacy of love and art intertwined with the dreams of her past. In the closing scenes, as she writes on her child's face, the cycle of creativity and love continues, echoing the themes of her father's nurturing touch from her childhood.
