This plot is unknown. The film is based on the Spider-Man villain Venom and is believed to be part of Sony's plan to build a cinematic universe around the Web Head's iconic rogues gallery.
Venom's first full appearance in the comics happened in 1988's The Amazing Spider-Man #300 and he quickly became one of Spider-Man's most popular foes. The character was part of Sam Raimi's Spider-Man 3 in 2007, but the portrayal was widely criticized by fans. A spinoff starring Venom has been in development for quite some time, with first word about the project happening in 2007. Venom finally gained traction again in March 2016 and was surprisingly confirmed in 2017. Zombieland director Ruben Fleischer will helm, with Oscar nominee Tom Hardy portraying the title role. Principal photography began in October 2017 and wrapped in January 2018. Sony is going for an R rating after Fox experience success with adult-orientated comic book adaptations.
It is unknown if this is part of the Marvel Cinematic Universe following Marvel's deal with Sony to use Spider-Man in the MCU. Kevin Feige says it is separate, but Amy Pascal referred to Venom as an adjunct of the MCU. New Spidey Tom Holland is rumored to cameo, though that has not been confirmed.
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