Meanwhile, in a separate but converging storyline, is shown to be on the brink of a scientific breakthrough while simultaneously purging her house of her late father Arthur's belongings.

In the third episode of the Showtime series Let the Right One In , titled the central plot involves Mark Kane attempting to cover his tracks after learning that his new neighbor, Naomi, is a homicide detective. The story focuses on three main threads:

Are you interested in a of how the drug investigation eventually leads back to Mark and Eleanor?

After realizing Naomi's profession, Mark works to dispose of the body of Frank—a victim he killed to feed his vampire daughter, Eleanor—by dumping it in a river with the help of his friend Zeke.

Naomi and her partner Ben make a "massive discovery" in the sewers while investigating a string of murders and a mysterious new street drug. This investigation begins to weigh heavily on Naomi after she is forced to take a life during a confrontation.