Lamesfest: into the underground follows the origin story of Lamesfest, a reoccurring gig based in London created by Deijuvhs that centers around the underground music scene. The feature-length documentary goes in depth into the accounts of artists that are known to have commonly performed at the gig, including the emerging collective Love Sept, who met one of their members at a Lamesfest concert in 2018. The film also recounts the beginning of the Se Demons, a South-East London based collective in the underground scene who are apart of Lamesfest records and perform and most, if not all, of the Lamesfest events.