D@bbe (2006)

A very large number of people start to commit suicide using brutal and horrible techniques and without any reasons. Starting from the United States, this suicide wave spreads all over the world. In Turkey, in a small town called Selcuk, a young man kills himself after a long, night he spends on the Internet. Following the incident, his best friends start to get strange e-mails from him. They also start seeing horrible creatures around themselves--this is just the begining of the apocalypse.

Source: TMDb