Although it is a Marvel character, the movie "Venom" is made by Sony pictures, including venomousness and comical factors in it. The original story of Venom has him as the Spider-Man villain, but the movie is not related to Spider-Man. Sony had rights to hundreds of Marvel characters, and 'Venom' comes from them.
Meanwhile, Eddie Brock as Tom Hardy bonds to the symbiote due to the indiscreet clinical trials done by the founder of Life Foundation, Carlton Drake(Riz Ahmed). The ultimate plan of Drake is to bring back these alien life forms from their planet and use humans as guinea pigs to find hosts that are appropriate to the symbiotes.