>> july 18th, 2003. tanner hanson has just wrapped up his junior year in high school and is enjoying all the graduation parties with his friends. on a warm saturday night, tanner drives to this park where he meets his best friend craig. some girls show up. and one of them suggests going to a party. another friend winces at the idea. but the group decides to go anyway. that's a decision tanner now wishes he had never made. tanner's friend craig. >> a lot of kids were coming in. some of my friends that i knew, and i was just like, oh, we don't have to worry about that. there are no problems. >> the group seems to be having a good time. but then without warning, says craig, the mood at the party changes. people they don't know are staring at them. one in particular. >> i've never been stared at like that. >> they decide to leave but as craig and tanner head for craig's truck, that intense stranger and a whole group of boys follow them.