Disturbia

Youngsters dad dies in an unfortunate car accident. He was lucky that he survived. But his life changed dramatically. He became very strange to school and was in bad mood many times.
Once the teacher teased him, and he reacted with the punch in the face.
He got house arrest for couple of months. In the mean he spent much of his time playing video games, sitting in front of the computer.
His mom wanted to make his life better, so she canceled all the tech stuff and made him do something useful.
He also got a new nice looking neighbor. And his hobby became spying after all the neighbors. He suspected one of his neighbors to be a serial killer, but he just never seen him do anything like it. The new neighbor, the cute one, came to him and they made friends, even more later. But you should probably see it for your self. It's nice one