Ep 4. Beauty and the Beast

Dexter season 5 episode 4, "Beauty and the Beast," follows Dexter Morgan (Michael C. Hall) as he confronts the possibility of losing his son, Harrison, in a high-stakes custody battle with his late wife's parents. Meanwhile, a new serial killer dubbed "The Barrel Girl Killer" is on the loose and the Miami Metro Homicide team is scrambling to catch up.

As Dexter juggles his personal and professional challenges, he finds himself attracted to a woman named Lumen Pierce (Julia Stiles), who happens to be one of the Barrel Girl Killer's survivors. Despite his reservations, Dexter offers to help Lumen extract revenge on those who hurt her, and the two embark on a dangerous mission of vigilante justice.

Throughout the episode, the tension builds as the Miami Metro team gets closer to identifying the Barrel Girl Killer's accomplice. Dexter's relationship with Lumen deepens and he struggles with his conflicting emotions about his own desire for justice and his need to keep his identity as a serial killer under wraps.

As the episode reaches its climax, Dexter and Lumen are forced to make a difficult decision that could have far-reaching consequences for both of them. Meanwhile, the Miami Metro team finally closes in on the Barrel Girl Killer, but the case takes a shocking turn that no one could have predicted.

Overall, "Beauty and the Beast" is a tense and gripping episode that explores the complex nature of justice, revenge, and the blurred lines between the two. It offers a compelling look at Dexter's moral struggles and the lengths he is willing to go to in order to protect those he cares about. With its strong writing and standout performances from the cast, this episode is sure to leave viewers on the edge of their seats and eager for more.