After cutting his teeth on award-winning commercials and earning festival exposure with short films, Emmanuel Osei-Kuffour Jr.
makes a solid feature directing debut with the absorbing mind-bender Black Box. Part of the Welcome to the Blumhouse series of eight genre entries made for Amazon by Jason Blum's television division, the thriller starts out with a firm footing in horror and becomes less distinctive as it shifts into more psychological and sentimental terrain.
Still, the confident storytelling keeps you watching, as well as strong performances from Mamoudou Athie as a widowed amnesiac and Phylicia Rashad as a brilliant brain specialist playing God.
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