Sunny Koufax's girlfriend walked out on him for being so childish. When a 5 year old boy showed up at his door, he immediately adopted him in the name of Kevin Gerrity ( his biological father and also Sunny's roommate). He presented his girlfriend with his new adopted kid and she was not impressed. However, Sunny had become very attached to his adopted kid Julian. Sunny taught him many new things but most were not a good influence. He started to justify his teachings at the end when Sunny was fighting for the custody of little Julian.
I thought this movie was very good, with a great story line. It was very cool to see the bond forming between Julian and Sunny which made this movie very meaningful. I would recommend it to a mature audience as it does have some bad language but overall it is pretty clean.