As Liz is lecturing in a graduate seminar about the case, the serial killer known as the Deer Hunter is carrying out another ritual murder. While Liz believes the Deer Hunter is a man obsessed with dominating his victims, a student who found that the last six murders are different from the first six suggests the recent killings are the work of a copycat. After the mysterious caller whose number was found in the St. Petersburg apartment warns him that something is happening, Red offers to help find the Deer Hunter if Liz tells him what she knows about the Fulcrum, and piques her interest when he also says the killer is a woman. Meanwhile, when the police make a deal with Samuel Aleko - the Samoan - Liz worries she’ll be arrested for the harbormaster’s murder. To keep her out of jail, Red bribes Aleko with a heart transplant for his ailing brother if he’ll exonerate Liz.
As Aram confirms the copycat hypothesis, another killing leads Samar to discover that the recent victims were either husbands or boyfriends of women who sought help for domestic abuse from WhiteHaven Shelters. Seeing Liz and Ressler questioning a co-worker, WhiteHaven employee Tracy Solobotkin worries she’s about to get caught and warns her latest victim’s wife, Mary Denning, against exposing her as her avenging angel. Seeing the FBI at the door, Tracy knocks Mary unconscious and flees with Liz close behind. Catching Liz by surprise, Tracy knocks her out and drags her into her garage to kill her. Going on the offensive, Liz challenges her to do it. Unnerved, Tracy admits that the original Deer Hunter was her abusive husband, whom she killed and then mimicked his crime spree in order to help other women. Provoking her into losing her cool, Liz gets her legs wrapped around Tracy’s neck and squeezes until Ressler arrives to make an arrest.
When Liz says she’s going to confess to her role in the harbormaster’s murder, Tom insists she not martyr herself for a crime she didn’t commit. So after Aleko refuses to implicate Liz, Red and Dembe head for the apartment that was the source of the mystery call, only to find it empty save for signs of a bloody struggle. Finally, after Red acknowledges they were both right about the Deer Hunter, Liz agrees to give him the Fulcrum - if he tells her what it is. But when Red says the knowledge would put her in danger, he suspects she’s hesitant to hand it over out of fear that she would never see him again.