Badly scarred after the accident that killed her husband, Camilla Brown locks herself away from the world.  Her only friendships are online, where everyone lives picture-perfect lives. 
In private Camilla can follow anyone she likes. And Camilla likes a lot.

Especially her old school friend Valerie Hutchens.  Camilla is obsessed with Valerie’s posts, her sickening joy for life, her horribly beautiful face.  But then Camilla spots something strange in one of Valerie’s posts – a man’s face looking through her window, watching, waiting…
And then Valerie goes missing…