The title "Bedlam" is a direct reference to the historical (often called Bedlam), reflecting the episode's focus on Alison DiLaurentis’s psychiatric confinement and the mental instability of various characters.
Alison experiences "extreme sweatiness" and hallucinations (actually gaslighting by Elliott), leading the Liars to realize she is being mistreated.
The episode titled refers to a pivotal installment of the teen drama thriller series Pretty Little Liars , which aired on June 28, 2016. Episode Overview
The episode is noted for its exploration of and the theme of predatory behaviors . It serves as a bridge in the final season, setting up the eventual downfall of Elliott Rollins and the deeper mystery of "A.D."