Quick recap
Emma returns to Lakewood after months at a treatment center. Noah suspects Piper had a partner, and Audrey is blackmailed by someone who knows her secret. The survivors, now called the Lakewood Five, lose friends one by one, Jake among them. The town starts to suspect Emma and Audrey. Near the end of the regular season, Kieran, Emma's boyfriend, unmasks as Piper's partner and the new killer, and he's arrested. In the Halloween special months later, the group heads to Shallow Grove island and faces another masked killer, posing as the owner of the house they're staying in.
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