Michael, who is known to tell tall tales, believes he sees a young girl get kidnapped. On their day off from high school, Michael convinces his friends to hunt down this perpetrator, leading them on a journey they'll never forget.

Stalking random people throughout the city, Jim records strangers to upload to his website as part of a voyeuristic social experiment. As he performs reconnaissance on his subjects, Jim meets Samantha, who snares him into her dark and mysterious web. It soon becomes clear that Jim and Samantha's past, present and future are all tied together, connected both by murder and the power of the lens.

When Sarah leaves a party without saying goodbye, her friends deal with an unexplained tragedy by retracing her steps that night. Their search can bring them together, but only if blame and guilt don't tear them apart first.