Two months after the shoot-out, the special investigation into Caspere's death has been shut down, with the State Attorney, Geldof, satisfied that Amarilla was responsible. Velcoro has since quit the Vinci PD and works private security for Semyon while fighting his ex-wife and her husband for custody of his son; Bezzerides has been demoted to the sheriff's office evidence lock-up, attending sexual harassment seminars, and has returned to investigating Vera's disappearance in her own time; and Woodrugh has been promoted to detective and investigating insurance fraud while fighting extortion attempts by Lindel. Semyon approaches McCandless, owner of Catalyst-the company holding the lands to be bought for the rail project-with information that the person he sold his waste disposal company to has died under suspicious circumstances. This, combined with McCandless' complicitness in having Semyon use said company prior to its sale to contaminate the lands around the rail project to lower its value before the federal government bought it back are used as blackmail by Semyon to get back into the rail project. McCandless instead gives him the chance to buy back into the project if he can recover the hard drive stolen from Caspere's apartment the night Velcoro was shot. Semyon also has Velcoro tail Blake, whom he no longer trusts. Velcoro spots him and Tony Chessani picking up three girls at Pitlor's clinic then bringing them to Semyon's rival, Osip. Meanwhile, Bezzerides makes a connection between Vera and the cache of blue diamonds found in Caspere's safe deposit box. This prompts Davis to re-open the investigation into Caspere's death under the pretext of finding Irina, bringing Velcoro, Bezzerides, and Woodrugh back together. Davis suspects Geldof colluded with Chessani, using the original investigation to establish an account to fund his campaign for governor and pin the corruption on Caspere. Velcoro is pensive but agrees when Davis offers to help him keep custody of his son. Davis also reveals to Velcoro that Gena's rapist had been arrested six weeks previously. After confirming this with Gena, Velcoro realizes that the tip Semyon gave him years ago was a set-up to corrupt him. Woodrugh follows up on the diamonds and discovers Dixon had been looking for them prior to their discovery but had kept that information to himself during the original investigation. This leads Woodrugh and Bezzerides to conclude that Vinci PD had been using Dixon to manipulate the investigation. Velcoro returns to Pitlor's clinic and beats Pitlor for information, confirming that Caspere and Chessani were in business together linking influential men with prostitutes at secret parties. They subsequently used pictures taken at the parties to blackmail men like McCandless who attend them. Bezzerides approaches Athena to try and get an invite to an upcoming party before she and Woodrugh, following a previous lead from her old partner, match Vera's last movements to an abandoned house in Guernville. Deep in the woods behind the house they discover a blood stained shed with a torture chair inside. As Semyon and Jordan reconcile after being at odds over Semyon's return to his old business practices, Jordan's infertility, and their future, Velcoro arrives at their new home and tells Semyon they need to talk.