A hypnotic, disorienting story of parallel lives unfolding over a day and a night in the sweltering heat of Seoul's summer.

For two years, twenty-eight-year-old Kim Ayami has worked at Seoul's only audio theatre for the blind. But now the theatre is shutting down and Ayami's future is uncertain. Her last shift completed and the theatre closed for good, Ayami walks the streets of the city with her former boss late into the night.

Together they search for a mutual friend who has disappeared. The following day, at the request of that same friend, Ayami acts as a guide for a detective novelist visiting from abroad. But in the inescapable, all-consuming heat of Seoul at the height of the summer, order gives way to chaos, the edges of reality start to fray, and the past intrudes on the present in increasingly disruptive ways.

Blisteringly original, Untold Night and Day is a high-wire feat of storytelling that explores the possibility of worlds beyond the one we see and feel - and shows why Bae Suah is considered one of the boldest voices in Korean literature today.