During an otherwise routine babysitting gig, a high school student is harassed by an increasingly threatening prank caller.

My bloody valentine: A tragic accident in a mine on St. Valentine's day took the lives of 5 miners. The only survivor, Harry Warden, was confined to a mental institution after the ordeal. Twenty years later, young lovers T.J. and Sarah and friend Axel are among the townspeople attending a Valentine's party. A box of Valentine candy arrives, containing an ominous message and a blood-soaked heart. April fool's day: A practical joker invites her college...