Marie receives a mysterious letter indicating her mother’s grave has been vandalized. Alongside her partner George, she travels to an isolated island town where her mother is buried. Upon arrival, they find themselves trapped as the island begins its scheduled offseason lockdown. The residents are unsettlingly peculiar and unwelcoming, adding to the growing sense of unease that Marie feels. While George becomes wary of their surroundings, Marie insists they investigate to uncover the truth about her mother’s grave and the sinister forces at play in the town.

As they delve deeper into the island's mysteries, Marie starts encountering strange phenomena that hint at a dark secret held by the island and its inhabitants. The atmosphere becomes increasingly tense as the couple realizes that the island is not what it seems, and escape is perilous if not impossible. Threatened by supernatural elements, Marie must confront her past and decide how far she's willing to go to protect herself and unravel the chilling enigma encircling them. With time running out before the island seals itself off completely, Marie faces challenges that force her to question her reality and the very fabric of the island's eerie existence.