It begins like any other day.

A familiar office. A routine commute. A conversation that means nothing. A note that shouldn’t exist.

Then the impossible starts happening—not all at once, but quietly. Patiently. As if someone has already written the story and is simply waiting for you to catch up.

Welcome to Post-It—a psychological thriller where obsession hides in ordinary moments, every episode reveals another piece of the puzzle, and the greatest mystery isn’t who is watching… but why.