A security operative hunts for an assassin. Based on the Villanelle novellas by Luke Jennings.
Cast: Sandra Oh, Jodie Comer, Fiona Shaw, Kim Bodnia, Owen McDonnell, Kirby Howell-Baptiste, Sean Delaney, Darren Boyd, Edward Akrout, Helena Holmes, David Agranov
Eve and Villanelle focus on making a seismic stab at The Twelve, risking their own lives; Carolyn arrives home as a traitor, she has a finite amount of time to use her intel as leverage to get herself back in the game.
Eve takes on an even bigger revenge mission against The Twelve and realises she may need Villanelle's help. Villanelle has a dalliance with the new assassin. Carolyn's latest string of intel may lead her home.
Eve and Villanelle reunite before parting to pursue their own missions, which leads Villanelle to another assassin in the Twelve. Eve moves closer to achieving her revenge mission, and Carolyn is forced to face a ghost from her past.
Eve seeks out any information about The Twelve's origin, but uncovers more than she bargained for.
Eve struggles to identify her lead in The Twelve; Villanelle gets her mojo back -- she decides to be good by embracing what she's good at: killing.
Eve locates Helene; Villanelle's quest for change goes awry; Carolyn is pushed aside by MI6.
Locating Helene, Eve wonders if she might be useful in her revenge mission against The Twelve; Villanelle's quest for change goes awry; M16 pushes Carolyn aside and forces her to seek cooperation elsewhere; she must find out who ordered Kenny's hit.
After Eve and Villanelle's exchange on the bridge, Eve is on a revenge mission; Villanelle finds a brand-new community in an attempt to prove she's not a monster.