Plot summary
A flashback shows that when the interns had confronted Rebecca about killing Lila, Rebecca blackmails them, saying that she found the campus cop who witnessed them carrying Sam's body out of Annalise's house the night of the bonfire. They move Rebecca to Annalise's house and attempt to make a case for Rebecca murdering Lila. Annalise eventually decides that all the evidence they have proving Rebecca killed Lila is circumstantial and therefore unwinnable. While they are working, Rebecca texts "Eggs 911 / Lawyer's house" to an unknown number from Michaela's phone. They move Rebecca to Annalise's basement and tie her up.
Wes listens to Rebecca's story of how she found Lila's body, hid inside the water tank when she heard people coming, and drugged Rudy to keep him quiet about seeing her come home soaking wet. He believes her story and that she is innocent. With the evidence against Rebecca being all circumstantial and Wes vouching for her, Annalise decides to free Rebecca and ask her nicely not to tell the police about the campus cop witness. Annalise goes downstairs to speak to Rebecca. Frank and the interns find Annalise outside by a door leading to an empty basement.
Annalise states that Rebecca was gone when she came downstairs and demands to know who let her go. As Wes leaves, Annalise returns to the basement where Frank is. She asks him if he "did it", and he in turn does the same, but they both deny it. When Rebecca's body is shown underneath the basement staircase, it is then revealed that they are referring to the fact that Rebecca never left the house and was in fact killed. Flashback: Sam meets with Lila on the roof of the sorority house after she threatens to go public with her pregnancy.
Sam consoles Lila and proclaims his love for her, telling her that he hadn't loved Annalise for years and he was going to go tell her. But after leaving, Sam makes a call and tells someone to do what they "talked about". It is then shown it was Frank who strangled Lila. Side stories: Oliver tests positive for HIV and tells Connor, who tested negative. Michaela cuts ties with Aiden's family. Laurel reveals that she found Michaela's lost engagement ring in Connor's car the night of the bonfire, and kept it from Michaela to ensure that Michaela would keep quiet about her involvement that night. Annalise, Wes, Connor, Michaela, Laurel, and Rebecca learn of Asher and Bonnie's tryst. Nate finally calls the phone number Annalise gave him.
Credits
Adapted from Wikipedia contributors, How to Get Away with Murder season 1. HTML formatting and reference markers removed.