The hunt is on for discovering the identity of the girl in the red coat. Hanna comes clean to Ashley about knowing CeCe and that she and her friends found out about an illicit relationship between Ali and Wilden.
Spencer continues on a downward spiral from her break-up with Toby. Andrew Campbell kicks Spencer off the scholastic decathlon. Emily tries to talk to Spencer but Spencer refuses.
Emily seeks Dr. Sullivan to help her deal with confounding emotions over killing someone in self-defense. Dr. Sullivan suggests hypnotherapy, which results in confusing Emily further.
In Alison’s biology notebook, Emily, Aria, and Hanna discover a conversation between Alison and a friend where Alison talks about a “beach hottie.” Emily turns to CeCe for answers about the beach hottie but CeCe claims Ali never told her who it was.
Aria is sidelined by the flu and Meredith takes care of her while Byron is away. Mona and Toby plan their next “A” move against the Liars in the new “A” lair
Aria remains suspicious of Byron. Mona tells the Liars that Harold, the janitor, has pursued her and she declined his sexual advances. They doubt her honesty.
Someone disguised as the Queen of Hearts spikes Aria’s drink while she sits and rests in-between Adam’s sets. Garrett corners Spencer and reveals to her that he made Jenna think that he killed Alison, but it was a ruse.