Jones and McNamee play a couple in "The Visitor," Robert and Maia, respectively. The couple experiences numerous tragedies in quick succession of one another, including the death of Maia's father. They leave their London home to go somewhere quainter, and that's when things take an odd turn. 

As described in Deadline, "When Robert discovers an old portrait in the attic of a man who is his spitting image, he goes down a rabbit hole to discover the identity of this mysterious doppelganger known only as the visitor. It isn't long until he realizes — where the visitor goes, death follows." 

It sounds like "The Picture of Dorian Gray" with a horror-infused twist. To figure out what exactly will happen with this story, you'll need to tune into Epix to see how it all plays out.