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Gayce, a take-no-shit young woman, deals a hallucinogenic drug called "theta," facilitating an audience for her friends' all-girl rock band. When Gayce's friends are brutally murdered, she must solve the mystery behind the murders and protect herself from the killer. She discovers the connections between theta and the murders - and learns a terrifying truth. That the world -- indeed her whole reality -- is not as it seems.

How to Watch The Theta Girl Legally and Safely

If you want to stream The Theta Girl 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 The Theta Girl 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.