“How much of it was a choice to be there and a choice to live in, in the delusion… I think that’s what’s really interesting.
“To make the choices that she made, of keeping this reality and the way that she could so that she could keep existing and being with Charles,” added Jenna.
Tonight’s episode will see Herman Knippenberg (Billy Howel) urge the Thai police to act and prosecute the trio as Charles concocts an escape plan.
But as Herman’s desperation to catch Charles out continues, viewers will have to tune in tonight to see how the murderer eventually gets brought to justice.
The Serpent airs Sundays at 9pm on BBC One.