Konstantin makes a break for it, while Eve and Villanelle try to work out what the future may hold for them - together or apart.
Carolyn is frustrated with the lack of progress in the investigation and is taking it out on those around her. Meanwhile, Eve is focussed on Villanelle and finds a clue to her whereabouts in the most unlikely of places. Villanelle and Dasha work together on a kill, and the pressure is getting to Konstantin.
As the investigation continues, Carolyn finds out that information is being withheld by those close to her. Eve finds a lead which might bring her closer to Villanelle, but Villanelle has had enough and decides on a different path.
Villanelle returns home to Mother Russia to try to find her family. Perhaps a new connection to her roots will give her back what has been missing in her life.
It's Eve's birthday, and she's trying to patch up things with Niko. Villanelle receives good news about her upcoming promotion but can't shake the feeling that there's still something missing from her life. Dasha seeks a solution to Villanelle's erratic behaviour.
Villanelle agrees to a job which will take her back to London; Carolyn's Moscow contacts come in use when Eve and the Bitter Pill team unravel a potential lead to The Twelve; Konstantin finds himself under pressure from all sides.
Eve strikes up an unlikely alliance with Kenny’s colleagues at the Bitter Pill, and Villanelle finds that management isn’t all it’s cracked up to be.
After being shot by Villanelle, Eve is attempting to rebuild her life; Villanelle is also moving on, until she is approached by an old foe. Carolyn is being undermined at work and Kenny can't leave his own investigation into The Twelve alone.
A security consultant hunts for a ruthless assassin. Equally obsessed with each other, they go head to head in an epic game of cat-and-mouse.