It's a Wonderful Knife

In the town of Angel Falls, while teenager Winnie Carruthers is celebrating the Christmas season with her family, her father David is called away by his business partner, Henry Waters, the CEO of Waters Industry. With David in tow, Henry attempts to persuade longtime local resident Roger Evans to sign off his house to be demolished to make room for a massive shopping mall, but Roger refuses, as he intends to pass the house on to his granddaughter, Cara, who is Winnie's best friend. Later, a masked assailant known as "The Angel" kills Roger in his home. At a party that night, The Angel murders Cara and nearly kills Winnie's brother Jimmy, but Winnie electrocutes the killer to death. She then unmasks The Angel, who turns out to be Henry.