The Ghost Sonata (S01E04)

Alison searches for Taylor, hopeful that she might still be alive and in hiding. Meanwhile, Caitlin, Ava, and Dylan come to grips with the idea that their blossoming friendship is at risk due to hidden secrets, leading them to discuss whether they should reveal everything to one another. Additionally, the Perfectionists work to gather evidence against their prime suspect, tightening their grip on the investigation.