Aria does volunteer work at a mental hospital and crosses paths with an aggressive patient. Meanwhile, Spencer borrows some of Ezra's spy tools; Ali clashes with Caleb, which makes things awkward for Hanna; and Emily's mom invites Ali to dinner.

Hanna's drinking escalates, and Aria suspects Hanna lied to her while she was drunk. Elsewhere, Emily looks for a connection between Alison and Noel; and Spencer uncovers something unexpected at her eye doctor's office.