I, Monster - watch online: streaming, buy or rent
We couldn’t find any streaming options in the United Kingdom, but I, Monster is available in Spain and 21 other countries on Netflix Standard with Ads, Netflix, and 2 other services.

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We couldn’t find any streaming options in the United Kingdom, but I, Monster is available in Spain and 21 other countries on Netflix Standard with Ads, Netflix, and 2 other services.
In 19th century London, Dr. Charles Marlowe experiments with a mind-altering drug which causes him to develop an evil alter ego, Edward Blake, whom his colleague begins to suspect is someone that is blackmailing Marlowe.