Limitless (2011)

Limitless (2011), an underrated thriller/mystery film rated 7.2/10 on TMDB.

The life of an unsuccessful writer is transformed by a top-secret 'smart drug' that allows him to use 100% of his brain and become a perfect version of himself. His enhanced abilities soon attract shadowy forces that threaten his new life.

See where to stream it, its Underrated Score and what the community thinks on Underrated Flixhub.