Will Freeman hit the jackpot when he penned a hit song, the proceeds of which allow him to live the single life unhindered by the responsibility of having a job. Things start to change when a needy mother moves in next door and her 11-year-old son, Marcus, starts dropping by unannounced. Will resists forming a relationship with the kid until he learns that women find fatherhood attractive, then the two reach an agreement: Marcus will pretend to be Will's son in exchange for being able to hang out at Will's place. As the two spend more time together, Will finds there are more benefits to having Marcus in his life than he could have guessed.