Smallville :

After Lex is accused of killing a young woman, Clark sets out to prove his innocence and asks an unlikely source for help: Lionel. Swearing he is a changed man, Lionel offers Clark insight into the crime, but he asks for something in return.

Meanwhile, Lana meets Jason's parents and has a vivid flashback of the incident in Paris when she got her tattoo. Lana suspects that Jason's mother, Genevieve (guest star Jane Seymour), was present when Lana got tattooed.