The Hunting Party Sneak Peek: Eliza Coupe Is The 'Killer Chemist' At Center Of Twisty Finale (Exclusive)

Happy endings will be hard to come by in The Hunting Party's Season 1 finale, which airs tonight at 10/9c on NBC.

The yet-to-be-renewed thriller's freshman finale, "Jenna Wells," guest-stars Eliza Coupe as the titular Killer of the Week — a Pit inmate whose therapy made her even more dangerous and deranged.

She is also considered to be at the center of many of the exploded prison's unraveling secrets.

A onetime pharmacist who laced dozens of prescriptions with deadly toxins, Wells is "as cold as they come" and has been the subject of multiple documentaries, Shane (played by Josh McKenzie) notes in the sneak peek below.

Press play below to learn more about Wells' treachery, and to get a sneak peek at the fugitive interacting with her latest target.

The on-the-bubble drama's finale, TVLine can tease, also continues the thread about the mother Shane never knew, whom the fast-fading Dr. Dulles years ago kept from her wee son; leaves at least one team member's life in jeopardy and lets slip a very curious detail about another; and ends with an emotional confession.

"It will leave people intrigued," star Melissa Roxburgh previously told TVLine. "The way that they tie Season 1 up, I want to know what happens next."

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