Created by Fleabag star Phoebe Waller-Bridge, the drama is centred on MI5 officer Eve Polastri (played by Sandra), who finds herself on the trail of a ruthless killer, code-named Villanelle (played by Jodie).
After learning the person responsible for a string of high-profile killings across Europe is a woman, bored agent Eve makes it her mission to catch Villanelle.
What unfolds is a dangerous cat-and-mouse game between the two women.
TV Times caught up with Jodie to ask her more about her character.
‘Villanelle’s such a free spirit; she does what she wants and there are not many consequences for her and, if there were, she wouldn’t really care anyway.
‘I found myself doing lots of outrageous things and getting away with it,’ says Jodie. ‘I can be self-conscious but Villanelle doesn’t have an ounce of that!
‘She’s a total narcissist and a show-off. In the way she dresses and in the way she kills, there’s nothing subtle about her. She lives on her own in Paris and this ‘job’ she does affords her all these luxuries, so I think she loses control a little bit,’ she says.
‘Villanelle becomes very aware that there are people who are coming after her and she wants to lure them in, like her prey. But then she gets a bit careless.’
All eight parts will be available on BBC iPlayer after this episode has aired on BBC1.
TV Times rating: ****