100 Letters I Never Sent

YOON SAE-RA* (25), a quiet, introverted scriptwriter, lost her first love, *KANG JI-HOON*, five years ago in a mysterious accident. Since then, she's written him 100 letters-never mailed, just tucked in a box under her bed.

One day, a new tenant moves into the apartment next door-*KANG JUN-HO* (27), Ji-hoon's estranged twin brother, who had vanished from the family after a fallout years before.

He doesn't remember Sae-ra. But she remembers him... and the pain he left behind.

Slowly, their paths cross-awkwardly, painfully. Sae-ra still clings to the past, while Jun-ho carries guilt he's never spoken aloud.

As Sae-ra struggles between forgetting Ji-hoon and forgiving Jun-ho, the unopened letters begin disappearing... one by one.

Who's reading them?

And why does Jun-ho seem to know things no one else should?

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