The 21-Day Theory 2025

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

  • Poster for Season 1

    Season 1

    2025

    4 episodes

    Season 1 of The 21-Day Theory premiered on January 17, 2025.

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