In Unbelievable Season 1 Episode 6, the investigation caught some breaks, and Marie took the plea deal.
In the previous episode of Netflix’s Unbelievable, Karen learned of a forensics textbook popular among rapists to avoid detection, and Marie quit her job.
Frustrated with the lack of evidence, Karen and Grace met with some key law enforcement players and had nothing substantial.
She asked a young guy to buy it for her, and the girl in his car asked her to join them.