Lars is a sweet but shy guy who has a hard time talking with his family, coworkers, and neighbors. Although his family fears the worst when Lars brings home a life-sized companion doll who he thinks is a real girlfriend, named Bianca, a doctor encourages them to play along with him so that he can work through his delusions. The whole community rallies to his support, and Lars begins to deal with all of his emotions. He even begins to develop feelings for Margo, an attractive co-worker, in what becomes "a hilariously unique love triangle."