Letha goes into labor as we see the whole conclusion of the killing spree and its mysteries unravel. Both, the Rumancek's and Godfrey's, are for ever changed but more horror is yet to come.
Dr. Chasseur and Olivia have a rough encounter at the abandoned mill. Peter and Roman discover the killer's true identity and Shelley finally finds out the truth about her family leading to unprecedented consequences.
Peter returns to Hemlock Grove looking for money to pay for a lawyer to Lynda, while Roman tries to quench his voracious appetite.
Peter undergoes questioning. Meanwhile, an unexpected alliance forms.
Peter and Lynda have to hide after their trailer is attacked by town vigilantes. Roman faces the truth about who he is and Christina disappears.
Roman wakes up from his coma and leaves the house. He goes back to Peter and their attempt to catch the killer during the upcoming dangerous full moon.
Roman welcomes an outsider. Meanwhile, Olivia becomes frustrated while trying to adapt to her ailments.
Roman tells Norman the truth about their family. Meanwhile, Olivia's rehabilitation takes an unexpected turn.
A new victim is discovered as Peter and Roman work together to find the killer. Dr. Chasseur helps Sheriff Sworn who thinks Peter is a suspect.
Peter explores the scene of his haunted premonitions. Meanwhile, Olivia demands exclusivity from Norman.
The town of Hemlock Grove is rocked when a girl is brutally murdered. A new young man in town is suspected even when the evidence suggests the murder was an animal attack.
It's homecoming at Hemlock Grove high school, but everyone in Hemlock Grove is wearing a mask of one sort of the other. Whilst at the crime scene, Peter is confronted by Roman. Olivia reveals a shocking secret while she goes back to Norman.
Roman is treated by Dr. Pryce. Later, Norman meets with a beloved relative.
A family reunion turns dysfunctional. Meanwhile, Peter and Roman reveal their true nature.
Norman confronts Olivia in the Season 2 finale. Meanwhile, Peter recuperates; and Roman takes care of unfinished business.
Christina's date doesn't go as planned. Also, Lisa is followed by Roman and Peter to the town's abandoned mill and make a helpful discovery.
Shelley commits an act of independence; Chasseur questions Roman but crosses paths with Olivia; Peter and Roman's friendship takes a turn.
We learn more about Dr. Pryce's relationship with Shelley. The anniversary gala at the Godfrey Institute for Biomedical Technologies doesn't go as planned and Destiny helps Petter.
Miranda and Roman seek medical advice. Meanwhile, Peter and Destiny must find a new way to help Lynda.
As Peter and Roman make progress in their investigation, Sherriff Sworn and Dr. Chasseur fall behind. Letha starts feeling attracted by Peter.
It is time for full moon again and Dr. Chasseur intends to capture the killer. Letha's and Peter's relationship is now in the open.
Roman goes on a bender and attacks the Godfrey Institute. The episode centers around Roman's revelations and dreams while he is in a comma for substance abuse.
Roman struggles to resist temptation. Meanwhile, new evidence arises in the search for Shelley.