Set in the near-future, technology controls nearly all aspects of life. But when Grey, a self-identified technophobe, has his world turned upside down, his only hope for revenge is an experimental computer chip implant called Stem.
Director/writer Leigh Whannell presents a vision of a Utopian future where technology is supremely ubiquitous. In that future, technophobe Grey Trace (Logan Marshall-Green) embraces an experimental computer chip implant named STEM after a mugging incident leaves him paralyzed and his wife dead. STEM proves to possess its own agency, making for an unpredictable ally in Trace's vendetta.