This he followed by English versions of the rondel, rondeau and villanelle. Poetic fixed forms that feature refrains include the "villanelle", the "virelay", and the "sestina". The villanelle is an example of a fixed verse form. Codename Villanelle is a 2018 thriller novel by British author Luke Jennings. Some commentators conjecture the name Villanelle was derived from the word villainess. Eve and a stunned Villanelle stare at each other wordlessly. She goes to the kitchen to read through the file on Villanelle. Eve excuses herself to the bathroom, where she unknowingly encounters Villanelle disguised as a nurse. Villanelle and Nadia scuffle, but Diego breaks up the fight. Frank runs across a field, with Villanelle in pursuit on foot. She turns around to see Villanelle in the house. Both Eve and Villanelle realise they met the other at the hospital. They have a brief interaction where Villanelle advises Eve to wear her hair down. The television series cast Sandra Oh as Polastri and Jodie Comer as Villanelle. Burt examines the approach to relationships Villanelle takes in this episode.