This black and white selfie of a woman posing in a bedroom may look normal enough at first glance. But there's something about it that's freaking out the internet.
Can you work out what it is?
Originally posted to Imgur, there's no ghostly figure to be found, or strange, camouflaged item to uncover.
Viewers across social media have shared the picture, admitting to being baffled by what they're supposed to be looking for.
"I looked for ages and couldn't see anything," one person wrote.
As it turns out, the oddity is on the woman's hand.
How many fingers does she have?