Roman confronts Peter at the crime scene, finding common ground. Letha reveals a shocking secret and Olivia and Norman fall into old habits.

Christina discovers a new victim and Sheriff Sworn gets outside help from Dr. Chasseur. Now a suspect, Peter joins Roman to find the killer.

Shelley's connection to Dr. Pryce is further revealed, Destiny helps Peter understand the recent murder and the gala at the Tower goes horribly awry.

After drunkenly attacking the Godfrey Institute, Roman falls into a coma and embarks on a subconscious journey of shocking truths and revelations.

As a full moon approaches, Letha's parents discover her relationship with Peter. Despite a crisis of faith, Chasseur prepares to capture the killer.

A weakened Roman emerges from his coma and reunites with Peter to stop the killer. Hemlock Grove braces itself for another lethal full moon.

The tragic conclusion to the Hemlock Grove killing spree leaves both the Godfrey and Rumancek families devastated, with the final horror yet to come.

Peter explores the scene of his haunted premonitions. Meanwhile, Olivia demands exclusivity from Norman at all costs.

Roman tells Norman the truth about their family. Olivia’s rehabilitation takes an unexpected turn. Destiny discovers what the murderers are plotting.