The 21-Day Theory

45m1 SeasonTMDb 8.0

ThaiEnded

Crew and Cast

Narikun Ketprapakorn

Narikun KetprapakornPie

Supakorn Saokhor

Supakorn SaokhorBoss

Pataraphol Wanlopsiri

Pataraphol WanlopsiriEuro

Dom Hetrakul

Dom HetrakulBarami

Storyline

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

change2561

The 21-Day Theory poster

You Might Also Like

Invisible Boys

6.92025

You Maniac

9.52026

Ticket to Heaven

9.22026

The Newsreader

7.42021

Heartstopper

8.62022

House of Guinness

7.52025

Only Friends

8.42023

Cupertino

5.82026

The Boy Next World

8.22025

Dangerous Romance

8.42023

Your Sky

8.22024

Bel-Air

7.72022

Tyler Perry's Ruthless

8.42020

South of Nowhere

7.22005

The Eclipse

8.72022

Offspring

6.92010

Life on Top

7.02009

Eyewitness

7.22016

My Life with the Walter Boys

7.82023

Julia

7.32022

More Like This

House of the Dark Shadows

10.02021

Dandelion Dead

9.01994

Proong Nee Gor Ruk Ter

9.02009

Maging Sino Ka Man

8.12006

Hometown's Embrace

8.02021

Light on Me

8.02021

Golden Blood

6.22021

Senna

8.12024

Love Destiny

6.72026

Country Boy

2.02021

Vengeance of the Bride

5.32022

My Boss, My Love, My Stepbrother！

6.32026

Under the Banner of Heaven

7.52022

Happy Ending

7.02024

One Year

5.52026

Thirty

2023

In the Name of Love

8.02025

VIP

6.42019

Montreal Boy: Some Strings Attached

5.32014

Resistance

8.02014

Info

Original title: คลับฟรายเดย์เดอะซีรีส์ Theory of Love ไม่มีทฤษฎีไหนใช้ได้กับทุกความรัก ตอน ทฤษฎี 21 วัน
Status: Ended
First aired: 17 January 2025
Last aired: 7 February 2025
TMDB score: 8.0 / 10 (2 votes)

Production

Studios: change2561
Countries: Thailand
Networks: ONE 31, Viu

Episodes

Seasons: 1
Episodes: 4
Runtime: 45m
Type: Miniseries
In production: No

Languages

Original: Thai
Spoken: Thai