8.048 minSeason 1 • Episode 12
LatestIn a small town, twelve mysterious letters and a 35-year wait intertwine to shape the lives and loves of a close-knit group of friends. Yu Nian and Shen Cheng’s world is thrown into turmoil when their parents vanish, followed by cryptic messages arriving from another time. Driven to uncover the truth, they plunge into a complex puzzle, navigating dual timelines and unraveling the secrets hidden within the letters that could explain their disappearance.
Writing
Dual timelines that actually pay off, no loose threads
Acting
Zhou Yiran's silent reaction to the fifth letter is devastating
Production
Same location shot across two palettes: warm 1988, desaturated 2023
Trivia, insights & behind the scenes
Sha Weiqi wrote all twelve episodes in chronological order of the 2023 timeline, then reverse-engineered the 1988 correspondence. The actors playing the parents never met their 'children' on set until the finale table read.
The 'twelve letters' structure mirrors traditional Chinese zodiac cycles, with each episode's letter corresponding to a symbolic animal trait. The pig episode (twelfth) was originally banned from streaming for its political allegory before being restored.
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