Frownland (2008)

Keith, a socially awkward outcast who refers to himself as a "troll," navigates a life marked by deep-rooted neuroses. His existence unravels as he struggles with his dead-end job selling discount coupons, a dismal living environment, and the gradual collapse of his few remaining connections. As he grapples with his overwhelming insecurities, Keith finds himself caught in a relentless downward spiral, ultimately facing the disintegration of his world and the relationships he desperately clings to.