Narikun Ketprapakorn
Pie
Series
Watch The 21-Day Theory (2025) Online
9.01 votes202545mEndedDrama
Synopsis
Using the 21-Day Theory, a determined woman pursues a wealthy man to prove he's straight—but the truth defies her expectations.
Episodes
Season 1
PreviousNext
Cast
Top Billed Cast
Supakorn Saokhor
Boss
Pataraphol Wanlopsiri
Euro
Dom Hetrakul
Barami
Availability
Where To Watch Legally
No legal streaming, rental or purchase options for The 21-Day Theory were reported for this region.
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FAQ
Frequently Asked Questions
Is The 21-Day Theory available to watch online?
Vidbox does not currently have a legal streaming, rental or purchase option on record for The 21-Day Theory in this region.
How many seasons does The 21-Day Theory have?
The 21-Day Theory has 1 season and 4 episodes.
When did The 21-Day Theory first air?
The 21-Day Theory first aired in 2025.
Is The 21-Day Theory still running?
The 21-Day Theory's status on TMDB is: Ended.
What genre is The 21-Day Theory?
The 21-Day Theory is classified as Drama.