Hardcore fashion followers will be pleased to learn that the very dress - named Villanelle in her honour - is now available to pre-order.
The retro suit
In a fashionable nod to swinging London, Villanelle reports to duty in the British capital decked in Halpern print.
A look so good, only a swept quiff and Simon Miller platforms are needed to complete the dead-on-trend ensemble.
For those seeking to recreate the cool-girl retro moment, the very Halpern suit is available to shop.
The European mini dress
Another groovy moment sees the hired killer settle into her Barcelona apartment in a suitably bright mini dress and cowboy boots.
The very La DoubleJ frock is up for grabs - trumpet-sleeves and all!
Meanwhile, Villanelle's covetable shopper is available to pre-order (it's screaming for us to whisk it on a romantic European tour).
For those tempted to go all out, a similar pair of Golden Goose cowboy boots are aching to be stomped around in.
A well-dressed assassin's pyjama of choice
What does a fashion-obsessed villain wear to bed?
Silky Olivia Von Halle pyjamas, duh.
Although Villanelle's season three pyjamas have sold out (she's the only baddie we know with a hold over our shopping habits), a similar silk pyjama set is available to shop.
Just don't wear them with slippers, you don't want to get on the wrong side of fashion's deadliest muse...
This article originally appeared on InStyle Australia.