A teenage girl sets out in search of her missing best friend, a mischief-making flirt who had been recklessly meeting men online, in this thriller featuring Twilight star Anna Kendrick. Sarah (Kendrick) is a straight-A student and popular athlete, and Jillian (Tania Raymonde) is the girl with the reputation that every parent fears most. Yet despite their differences, Sarah and Jillian have been best friends for as far back as either can recall. Both girls long to escape their small town for something more exciting, though it's Jillian who acts first. Shortly after revealing to Sarah that she is searching for a man online to take her someplace new and exciting, Jillian vanishes without a trace. The only clues that Sarah has to her old friend's whereabouts are a journal, and a cryptic video message sent by Jillian just before she disappeared. Frustrated that the people in town would rather just pretend that Jillian never existed, Sarah enlists the aid of local computer whiz (who harbors a secret crush on her) to trace the origins of the mysterious message and unlock the mystery of her best friend's disappearance.