15. Anna Mae

Ophelia throws a welcome-back party for Annalise. Annalise's estranged father is present, and Ophelia has been seeing him. At Annalise's office, the team learn that Denver has issued an arrest warrant, and suspect an inside informant. Laurel reveals to Frank that Wes' father is Wallace Mahoney. Oliver tracks Annalise's whereabouts, and Nate goes to Memphis to meet her. They have dinner with her family, where Annalise is reluctant to talk to her father (who left the family when she was a child), and tells her mother about her earlier pregnancy.

The next morning, Annalise returns to Middleton and meets Denver, revealing that Caleb was the serial killer (and the informant), per evidence from Caleb's fitness tracker, procured by Philip, and Catherine's changed testimony: she is in love with Caleb and suspects that he killed their adoptive parents to inherit their wealth. As the police begin searching for Caleb, he is shown to have committed suicide. Later, Oliver impersonates Connor to decline the latter's place at Stanford and delete his acceptance email. Annalise tells Bonnie, who reveals what Frank did, that Frank "needs to go." Laurel visits Frank's apartment, but finds that he has already left town with his suitcase of money.

Wes meets Wallace for the first time, only for Wallace to be shot in the head right in front of him. Flashback: It is revealed that the woman Frank meets in the previous episode is working for Wallace; she offers Frank the reward of a suitcase full of money for bugging Annalise's room, which he does, and, after hearing Annalise is about to disclose the truth to the FBI agent who interrogated Wes, she calls Wallace, who asks her to "take care of it," meaning that the car accident is by design.

Frank reveals this to Sam, pointing out that Wallace wants to get a mistrial; the latter threatens to ruin the former's life if he reveals it to Annalise. It is subsequently revealed that this is what Frank "owes" Sam, settled by his murdering a pregnant Lila.