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The 21-Day Theory

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IMDb ratings graph for every episode of The 21-Day Theory across all 1 season.

2025 · 1 seasons · ONE 31 · Drama

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Overview

Using the 21-Day Theory, a determined woman pursues a wealthy man to prove he's straight—but the truth defies her expectations.

NetworkONE 31

Runtime~45 min

Seasons1

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Frequently asked questions

How many episodes does The 21-Day Theory have?

The 21-Day Theory has 4 episodes across 1 season.

How many seasons does The 21-Day Theory have?

The 21-Day Theory has 1 season.