Don't Look Back (DVD)

Caitlin Kramer, is one of several people who witness a well-liked public figure being assaulted in a park and don't intervene. When the victim dies and the witnesses are "outed" to the public, they begin to die mysteriously. Caitlin believes they are being stalked by a person out for revenge but when she begins to see signs and experiences eerie events it leads her to suspect that something far more insidious is after them...maybe the victim's restless spirit, or even karma itself.