In “Venom: Let There Be Carnage,” Eddie Brock, a journalist struggling to revive his career, interviews the notorious serial killer Cletus Kasady. During the interview, Kasady becomes the host of the symbiote Carnage, leading to a violent escape from prison. As Carnage wreaks havoc, Eddie and his symbiote, Venom, must confront this new threat to stop the chaos and protect those they care about.