Everything about Beacon Heights seems perfect, until the high-stakes of the college environment pushes a resident to the point of murder.

In the wake of murder, Ava, Caitlin and Dylan join forces to give themselves a credible alibi; Mona starts slipping into old habits.

The Perfectionists identify a possible suspect in Nolan's murder; Alison begins to look into the circumstances surrounding Taylor.

Alison hunts for Taylor; Buried secrets threaten Caitlin, Ava and Dylan as they tighten the noose around their number one suspect.

Mona communicates with a mysterious stranger who promises insights into the murder; The Perfectionists plan to clear their names ends in tragedy.

Mona makes a surprising discovery; Ava comes into contact with a fellow student with an unexpected connection to her past; The Perfectionists struggle to recover from recent events.

The Perfectionists deal with impacts in their academics and relationships; Ali continues to make inroads with Taylor; Mona investigates who left her a mysterious message.

Mona, Ali and the Perfectionists concoct a plan to turn the tables on Dana Booker. Ali and Mona separately try to deduce how much they can trust Taylor as part of their team. Caitlin is left reeling when she finds out Jeremy may be keeping secrets of his own. Written by sarah_l91

Convinced they know who killed Nolan, the gang set out to prove it, but Dana continues to complicate things by exposing a critical secret.

In the aftermath of a shocking event, the gang try to pick up the pieces, but new information makes them question everything.