Chemistry (Dexter)

It is the 79th overall episode of the series and was written by executive producer Manny Coto and Karen Campbell, and directed by Holly Dale.

Set in Miami, the series centers on Dexter Morgan, a forensic technician specializing in bloodstain pattern analysis for the fictional Miami Metro Police Department, who leads a secret parallel life as a vigilante serial killer, hunting down murderers who have not been adequately punished by the justice system due to corruption or legal technicalities.

In the episode, Dexter tries to prevent Sal Price from finding crucial evidence against Hannah and himself, while Quinn realizes he will not escape the Koshka's influence.

According to Nielsen Media Research, the episode was seen by an estimated 2.01 million household viewers and gained a 1.1 ratings share among adults aged 18–49.

The episode received positive reviews from critics, who praised the performances and character development, although some expressed disdain for Quinn's subplot.

Sal (Santiago Cabrera) gets Debra (Jennifer Carpenter) in touch with Lori Kirkwood (Julie Warner), the sister of Hannah's deceased husband, Jake.

Lori consents to the exhumation, but the coroner discovers that because Hannah had declined to have her husband embalmed, all that remains are bones without any tissue, making it impossible to find any trace of poison.

Sal stalks Hannah, wanting her to give an interview for his book, threatening to reveal that Dexter withheld evidence to protect her.

Matt Fowler of IGN gave the episode a "great" 8.4 out of 10, and wrote, "The lack of a single "big bad" this year, and a focus on Dexter and Deb's new uneasy partnership, has helped reinvigorate the show.

What made the beginning of this season so auspicious was the much-needed sense of urgency, and the budding romance between Dexter and Hannah feels anything but urgent.

"[6] Richard Rys of Vulture wrote, "One week, she's thinking live and let kill; the next, she's ready to buy her brother a new set of knives for a proper Hannah carving.

"[7] Katy Waldman of Slate wrote, "There are so many silent crime scenes in this episode: The Colombian bar where the homicide team can't recover any evidence, the desiccated skeleton of Jake, Hannah's husband, Sal's negative tox screen.

"[10] Nick Harley of Den of Geek wrote, "With other plot elements, like Isaak's pending revenge, Deb's discovery and LaGuerta's curiosity in the Bay Harbor Butcher case, the addition of Hannah McKay only distracts from the other storylines that have more potential, and wastes time retreading over familiar ground.

"[11] Matt Richenthal of TV Fanatic gave the episode a 4.4 star rating out of 5 and wrote, "Looking way ahead, with all these seeds being planted, I can legitimately say I have no idea where the series is headed to close out this season and then the final eighth one.