'Of all the terrible fads birthed by the millennial internet – pastel pink, GIF keyboards, the phrase "Netflix and chill" – the Instagram influencer at least makes for a campy archetype on screen. Her presence – and it is unfailingly a her – in film and TV signals the arrival of something unhinged: she is either a stalking victim, or, worse, a Francophile; often conniving and always a liar.'