Melissa is a simple seven year old girl who loves the little things in life. Despite the fact that her working single mother can barely provide for them, Melissa is cheerful, fun-loving, upbeat, and thinks the best of everyone and everything ... except for the ``Alligator``, a Stalker who follows her at a distance, wherever she goes.
As the rest of Melissa's life is recounted in very much Forrest Gump style, the audience sees Melissa every ten years; growing with her through the rough times and the good times, and learning the things that Melissa learns throughout her life. In every ten year segment, the Stalker hovers closer and closer, and every ten year segment ends at a unique point where Melissa, fearing for her life, flees from an unseen danger.
Near the end of her natural life, Melissa reflects on her average but wonderful life. The Stalker then attacks, the phases of the attacks affecting each decade of Melissa's life where each segment left off, until, as a little seven year old girl again, Melissa cowers in the closet as the Stalker ominously closes in on her. Her cries for help go unanswered as Melissa's curdling scream echoes out of time and all fades away.