Four months after a night gone horribly wrong, Billie invites her classmates to a gathering in honour of her dead best friend. However as the night unfolds, Billie realises her friends may be hiding more than they seem…

Hazel becomes convinced Riley was murdered and interrogates everyone who was at the cabin that night. Meanwhile, Billie tries to brush off her unexplainable behaviour as her perfectly planned gathering spirals out of control.

Hazel investigates Julius’ twisted relationship with Piper, starting to suspect he might be dangerous. All the while deep in the forest Billie has an encounter that makes her fear for her sanity.

Billie and Hazel join forces to uncover what happened to Riley the night she died. What they uncover sends the party spiraling into chaos.

As friendships fracture, Hazel makes one last attempt to convince Billie that one of their peers killed Riley. Trying to go home, Billie discovers a haunting scene that changes everything.