Dumpster Fire follows Trisha, an actress struggling to land auditions and acting roles, while working at a bar to make ends meet. Amidst her dry spell, she strikes up a conversation with Sewer Bob, a local homeless man and former musician. Their unexpected bond grows as they share stories of their lives and grapple with their personal challenges. During their exchange, they both reflect on the present and contemplate what the future holds. This pivotal moment marks a turning point in their lives, offering both a glimpse of hope and a shift in their perspectives.