What is HER?

When Jessica Freeman stumbles across a body in an alley on an otherwise ordinary Tuesday evening, her instinct is simple - photograph the scene, call the police, do the right thing.

It is the worst decision she has ever made.

She never makes it to her friend's house that night.

What follows is a visceral, claustrophobic thriller told almost entirely within the four walls of a warehouse, where Jessica finds herself at the mercy of three men who each want the same thing - a photograph she claims to know nothing about - and will use every tool available to them to get it.

James is controlled, methodical and physicalky brutal. Karl is precise, perceptive and far too good at finding the cracks in people.

And Scott is something else entirely.

As the hours blur into days, Jessica must survive not just the physical brutality of her captivity, but a psychological war designed to dismantle everything she has built herself into. Because these men don't just want information. They want inside her head.

And one of them is getting dangerously close.

Meanwhile, back in the city, the people who love Jessica are looking for her.

Or at least - that's how it appears.