Cassette is an intelligent “found-footage” horror movie set in the world of vloggers and “social media influencers”. Four very different students move into a house with all the usual social, financial and sexual anxieties that come with this exciting experience. They soon realise they are sharing their flat with a vengeful ghost from the 1990s called Dawn. Dawn wins them millions of followers on social media. The big-money sponsorship deals soon follow and greed becomes more powerful than fear. But the media attention awakens an old evil far more deadly than any ghost and the students must face the horrific consequences of their actions.