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Best Seller" is a thriller centered around writer Hee-Soo (Eom Jeong-Hwa) who moves to a small house in a rural area after becoming involved in a plagiarism scandal. Hee-Soo then hears a mysterious figure tell horrifying stories and she writes a new novel based on those stories. Her novel becomes another best seller, but Hee-Soo's success is short lived. The stories in the novel are discovered to have been published 10 years ago. To prove her innocence, she goes back to the house to uncover the mystery that lies there

How to Watch Bestseller Legally and Safely

If you want to stream Bestseller through reputable and legal services, there are a few good options depending on where you are. Subscription platforms like HBO Max, Disney+, Netflix, Amazon Prime Video, and Apple TV+ sometimes carry Bestseller films or related DC titles—though availability depends on your country.

If you’d rather not commit to a subscription, there are ad‑supported, free (but legal) platforms such as Tubi, Pluto TV, Peacock or Crackle (where available in your region) that occasionally host superhero films.

Lastly, don’t forget about library‑linked streaming options like Kanopy or Hoopla (if your library or university is registered), and official uploads by film distributors on YouTube—these can also give you legal access to classic movies.