Deanna Madden, aka Jessica Reilly, hasn't touched another person in three years.

She hasn't left her apartment.

She makes money from performing to webcams on a sex site, where her clients pay $6.99 a minute for her time.

She's doing alright. The dollars are piling up in the bank. She's the number 3 model on cams.com.

And she hasn't killed anyone for years.

But when Deanna sees on the news that a little girl called Annie has gone missing, the story rattles her carefully ordered world. It's uncomfortably similar to the dark fantasy of one of her most disturbing online clients. She's convinced he's responsible for the girl's abduction - but no one will listen to her.

So, after three years, Deanna finally leaves the apartment.

And this is what happens...