Finding your next obsession
Finding your next obsession

One day, 25 years ago, missing Chun-bae's letter is delivered to his cousin, Jjang-goo. The letter contains Chun-bae's lover, Bok-soon, and other people's letters. Jjang-goo finds Bok-soon to deliver the letter and meets class president Jang together. The three people recall their memories from 25 years ago, and eventually faced the person who sent the letter. Through that, the tangles begin to unravel.
LUXEN Decision Guide
A tension-first choice where uncertainty, investigation, or escalating pressure is a major part of the appeal.
Best fit
Who it is for
Best suited to viewers who want a plot with questions to chase rather than a purely relaxed watch.
Commitment
Light commitment · 1h 25m
Use the runtime as a quick check against how much time you have tonight.
Start here
Read the synopsis, then check the trailer.
Read the synopsis, then check the trailer, then use the drama and mystery cues to decide whether the tone fits.
Cast
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