Big Daddy plot
"Nature called. Look who answered."
Sonny (Sandler) is messy, undisciplined and irresponsible. In other words, a big kid. His girlfriend no longer sees a future with him and leaves. The next morning, a five-year-old boy shows up at the door. He is the son of Sonny's divorced roommate, but he is currently in China. Julian has been put up for adoption. Sonny decides to raise the boy himself to prove that he can indeed take responsibility.