Backdrop
2025 Drama

The 21-Day Theory

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

9.0 TMDB RATING
WATCH SERIES TRAILER

Official Trailer

Principal Cast

Narikun Ketprapakorn

Pie

Supakorn Saokhor

Boss

Pataraphol Wanlopsiri

Euro

Dom Haetrakul

Barami

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