Maybe the horse wife is her sister.
The dead sister?
Or the lady who LOOKED HER RIGHT IN THE FACE and tried to bribe her to cross the border with ambulance?
Gotta say, both options seem pretty unlikely
ETA: just found this.....
It's based on a Scandinavian hit, "Bron/Broen"
aside from being a woman – there are a few female anti-heroes as well – Sonya defies the archetype in a number of other ways. A detective in Texas, Cross is committed to the law and doing good; she is a rule-follower to a fault (in the first episode, she refuses to let ambulance carrying a critically ill man across a crime scene, lest it disrupt evidence)
But more importantly, she is cold, blunt and socially shut off. She is not charismatic like Tony Soprano, charming like Francis Underwood or smooth like Don Draper. And while it's not directly made clear in the first few episodes (to the frustration of some critics), Sonya has Asperger's Syndrome, which sits on the autism spectrum, a trait borrowed from "Bron/Broen."
"I was very confused and a little thrown off by Sonya, I didn't know if I like her or what was her deal," Diane Kruger, who plays Sonya, tells U.S. News. "By episode three, I thought she was one of the coolest characters I'd seen on television."
This post was edited on 7/11 at 10:48 pm