The season one finale of Pretty Little Liars: The Perfectionists , titled "Enter the Professor," follows the main characters as they cover up a shooting and are introduced to a mysterious new figure. The episode centers on the group pinning Taylor’s self-defense shooting of Jeremy on him, leading to their exposure to a secret, surveilled society.
Detailed episode recaps are available, such as those found on Pretty Little Liars Wiki and TV Fanatic . Enter the Professor | Pretty Little Liars Wiki | Fandom [S1E10] Enter the Professor