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In the Nineteenth Century, in London, the psychologist Charles Marlowe researches a new drug capable to release inhibitions and uses his patients as guinea pigs. He discusses the principles of Freud with his friend Dr. Lanyon and decides to experiment his drug in himself. He becomes the ugly and evil Edward Blake and his friend and lawyer Frederik Utterson believes Blake is another person that might be blackmailing Charles. Meanwhile Charles loses control of his transformation.

How to Watch I, Monster Legally and Safely

If you want to stream I, Monster 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 I, Monster 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.