Don't Look Back

What if you had the chance to start again... but only if you promised never to look back?
Samantha is popular, rich, and seemed to have it all... until the night she and her best 'frenemy' Cassie disappeared, and only Sammy resurfaced, with no recollection of who she is or what happened.
Sammy's a stranger in her own life - a life she no longer wants any part of; so losing her memory is a chance to start again.
Then Sammy begins receiving mysterious notes warning her about that night, urging her not to look back. But she can't let it go. And as she starts poking around in her past, she begins to remember... and something sinister begins to surface.