Mary Worth.

When they were children, Claire and Andrea would play Mary Worth (An old game where you say her name into a mirror three times). However, they could never muster the courage to say Mary's name the third time. Now curious and bored teenagers, they decide to play once more for fun. What they don't know is that the legend of Mary Worth is actually true, and if her name is recited at the right time of night, they will soon discover the terror that follows speaking the name... MARY WORTH.