Will Freeman leads an enviable life as the quintessential adult who refuses to grow up. Thanks to a successful song he penned, he enjoys endless leisure, carefree romance, and financial security. Content with his single and jobless status, his world is unexpectedly shaken when Fiona, a single mother in need, and her uniquely endearing 11-year-old son, Marcus, become his new neighbors. Marcus’s spontaneous visits to Will’s home leave him uncertain about becoming a child’s confidant, until he realizes that women are drawn to single fathers. This revelation prompts an agreement: Marcus will pose as Will’s son, and in exchange, he can hang out at Will’s place. Gradually, Will finds himself relishing Marcus’s company and even begins to care for him. This unlikely friendship might just teach Will some surprising lessons about himself and the importance of caring for others.