Spoiler warning: Spoilers for Season 1 only.
Margo killed Abby using Sophie’s gun, and Sophie later kills Margo’s brother Kyle. The Hunting Wives ends its first season by giving the wrongly suspected woman a real death to conceal just as she understands the original crime.
Why did Margo shoot Abby?
Abby realized that Brad’s account of an abortion concerned Margo, not her. She threatened to expose the relationship and the pregnancy, putting Margo’s position within the social circle at risk.
Margo used Sophie’s weapon, allowing the evidence to point toward the outsider. The later deaths of Starr and Jill produce another apparently convenient resolution, and the official investigation settles on Jill.
That answer closes the case without explaining the clue Sophie eventually connects to Margo. The investigation and the truth have again reached different destinations.
Why does Sophie confront Margo?
She notices an inconsistency in what Margo has said about her body and traces it back to the abortion Brad discussed. Instead of immediately taking the information to police, she confronts Margo herself.
The confrontation gives Margo warning and brings Kyle into the effort to contain Sophie. He tries to run her off the road, then approaches her car.
Sophie panics and runs him over. The sequence does not make her responsible for Abby’s murder, but it creates a separate event she cannot treat as someone else’s deception.
Why hide Kyle’s body?
Sophie fears how the police will interpret the death, particularly given her past involvement in a fatal driving incident. She moves the body into the woods instead of reporting what happened.
That decision traps the ending inside a new asymmetry. She knows the truth about Margo while Margo now has reason to investigate what happened to her brother.
The final concealment therefore changes what exposing Abby’s killer could cost. Sophie began trying to prove that the violence in this group was not hers. She ends with evidence to protect and an account of her own conduct that will be difficult to make others believe.
Sources: official ending breakdown.