Allegedly high on marijuana, a young student, Judith, plunges to her death from her apartment’s roof deck. Her broken body thuds to the pavement not far from university student Kirk who is playing basketball in the street below. He looks on in horror, but then stoops and caresses the dying student’s beautiful face.

Obsessed by Judith's ghastly fall, Kirk will risk his very life avenging Judith's death. He vows to put her weed supplier out of business. He pretends to buy and push the marijuana on campus but is actually collecting a stash of evidence.

Kirk stumbles upon the meaning of a secret cipher, timh. As he begins to trace the happy weed, he wonders if Judith’s own loving Uncle George, who has raised her from infancy as his only daughter, might somehow be involved in a diabolical money-making scheme.