Velcoro and Semyon discuss the tip that led Velcoro to his wife's alleged rapist, with both men grasping their guns under the coffee table. Semyon swears to Velcoro that he thought the information was genuine at the time. Satisfied that Semyon did not intentionally mislead him, Velcoro confronts the man arrested for the rape in prison, promising to kill him. After an awkward supervised visit with his son, Velcoro goes on a cocaine- and alcohol-fueled bender before calling his ex-wife and agreeing to drop the custody case on the condition that she never reveal her son's true parentage. Semyon later meets with Stan's widow and young son to comfort them and question them on possible suspects in his death, with Stan's widow citing Blake. Meanwhile, Woodrugh follows up on the missing diamonds to find that they were part of a cache stolen during a double homicide and robbery in the 1992 riots that orphaned two children, making the diamonds untraceable. Semyon starts searching for Irina, making an agreement with a Mexican cartel that will allow him to meet Irina provided the cartel are allowed to move drugs through his clubs. Irina calls Semyon and reveals that she had been given the items from Caspere's home by a police officer. Semyon arranges to meet her so that she can identify the man from a photo, but arriving at the meeting point finds her dead, having been killed by the Mexicans for dealing with police. Outnumbered and empty-handed, Semyon is forced to accept the deal with the Mexicans. Bezzerides goes undercover, posing as Athena to infiltrate one of the secret elite parties in Monterrey. With no phone, transmitter or weapon, she is forced to rely on Woodrugh and Velcoro for support. At the party, she is drugged and taken to the guests with a busload of other girls. Her attempts to search the party are hampered by the male guests (Geldof, Holloway and Tony Chessani among them) and hallucinations of a strange man from her childhood, implying that she was sexually abused. As Woodrugh and Velcoro sneak in, they observe a meeting between McCandless and Osip where McCandless admits that Osip's investment in the rail project was far more lucrative than Semyon's. The two steal a set of contracts from McCandless' office. Bezzerides locates Vera at the party and attempts to get her out, but is forced to kill a guard in the process. She and Vera are found by Woodrugh who escorts them to Velcoro in a waiting car. As the four escape, Woodrugh goes over the stolen contracts and starts to realize the scale of what they are involved in.