In the beginning we get a flashback informing us of the Anna Karenina killer, a murderer who preys on teenage girls and meets them through online instant messaging, etc.
He is called the Anna Karenina killer because when he meets his target in person, he has them bring a copy of Anna Karenina.
Will Johnson is an average kid going to Lee High School, and relies on Internet communication heavily in his life.
He and his two BFF's, Seth and Ashton decide to skip school and go to the beach.
They hike and swim there.
To get Will out of the house, Seth and Ashton make up a profile page on the Internet of a girl called Kandie, who Will asks on a date.
When Will shows up at the place of the date, he is greeted by Seth and Ashton.
Soon, another guy discovers Kandie's page.
When the boys meet him, (asked to bring a copy of Anna Karenina) they recognize him as being around thirty years old and a guy they met while hiking that day.
They immediately get suspicious and call the police.
Fortunately the boys cannot find the guy in a book of mug shots of various criminals.
Then, Will's crush, Christa, gets asked out by THE SAME MAN.
Now, the boys must decide whether to save Christa and get involved with possible the Anna Karenina killer, or sit back.