Clark warns Lana when he discovers someone has been leaving love notes for her at her parents’ grave. They soon realize why the dark handsome poet is dangerous and kept locked up by his parents.

What's up with Lana? A secret admirer is leaving love poetry. Lana is intrigued and wants to meet him. She waits for him one night at the cemetery.

Who is Byron Moore? The mysterious poet Byron is the dark, brooding, artistic type. Guest-star Sean Faris portrays "Byron." Sean has appeared on the WB before, in the series finale of past comedy "Maybe It's Me." His film appearances include a role as "Danny's" Gunner in "Pearl Harbor," among others.

Goth-boy gets a bump on the head when Clark pushes Byron away from Lana at the cemetery, feeling he'll hurt her as Byron knocks a flashlight from Lana's hand. They take him to the Talon to recover, where he starts quoting Shakespeare to Lana. Clark notices slash scars across Byron's wrists. Before dawn they rush Byron home. His strict father greets them with a shotgun. Byron is secretly kept locked in the home's cellar, shackled to the wall.

What's up with Clark? Lana and Clark tell the Kents about Byron, and their suspicions that he is being abused by his parents. Jonathan, Clark and Lana accompany the sheriff to the home, where the Moores claim their son died in a drowning accident 8 years earlier. After some investigation by Chloe, the gang suspects that Byron's death was faked. They find out Byron was treated with experimental drugs for depression. It seems Byron has been melancholy for a long time.

What's up with Martha? Despite Jonathan's objections, Martha accepts a job as Lionel Luthor's Executive Assistant. Even Lex is against the arrangement, warning his father of eviction if this hire is due to another agenda.

How it ends: Instead of waiting for the sheriff's warrant, Clark and Pete go to the Moore house. Despite Byron's objections, they free him. Outside in the sunlight, Byron turns into an angry "incredible hulk," flinging Clark and Pete across the yard and running off to find his revenge for 8 years of a freakish life. Lana finds him at the cemetery, and lets it slip that they are seeking help for him through LuthorCorp, the owners of the now defunct pharmaceutical company that produced the drug still effecting him. Byron freaks when Lana pulls away from him, and runs off enraged.

Meanwhile, Martha and Lionel are about to lift off in the company helicopter from Luthor estate, on their way to a meeting in Metropolis. Hulk-Byron holds the helicopter back from take off. He throws Martha from her seat inside to get to Lionel for his revenge. Clark watching from a window, now tackles Byron into the darkness of an underground well, where he changes from hulk-Byron to gentle-Byron.

At the hospital, Byron is affectionate to Lana and sorry for his hulk harm. Martha convinces Lionel to rearrange his priorities to fund medical research to help Byron.

Alone together later, Clark and Lana talk in circles about differences, risks, and secrets, as Clark tries to understand Lana's acceptance of Byron.