I have just caught up with all 3 episodes and it's absolutely intriguing and like someone said above, it leaves a number of loose ends.
Why did Ikbal, who was living as Kelly in the US, suddenly say she had to leave. I did wonder if she was a "sleeper spy". Did she marry Saad bigamously in this country? It seems the FBI were watching her. Why?
What about all that money in the Swiss bank account in the father's name?
Why was Saad beaten up when he and Ikbal went to Baghdad for a visit? And why would they go there when his family had to leave in a hurry years ago because of his father's business?
Why would Saad take all those financial documents, a copy of the will and various hard drives etc on holiday in the caravan? Who does that? And why did he change the locks on his house after the fight with his brother Zaid, and keep a taser gun in the house? Surely he had no right to exclude his brother as they were both left the property by the father?
Zaid said there had been no disagreement whatsoever, but that turned out to be a lie.
So many unanswered questions.