"The Bayshore Club, located in a small coastal town in North America, draws crowds with its astronomically priced mysterious oysters. The Bell family harbors a horrifying taboo: only married women may learn the secret behind the oysters. Ella, the shop owner’s daughter, stumbles upon her mother’s jewelry embedded in oyster flesh, uncovering the ghastly truth that her parents breed demonic oysters using women’s bodies.
After Ella’s elder sister Luna marries, her husband dies under bizarre circumstances, and Luna is locked in the back kitchen by their parents. Her personal keepsakes keep turning up inside the oysters one after another.
As their mother’s vitality fades away, she pressures Ella to bring her boyfriend Daniel home to marry her. Gentle-seeming Daniel actually covets the enormous profits from the oyster trade and secretly investigates the secrets of the back kitchen. Ella calls the police for verification yet gets nowhere, and she is forced to register her marriage with Daniel.
Their mother suddenly falls critically ill, and the family compels the newlyweds to stay overnight at the club. The age-old generational curse of female sacrifice is poised to fall upon Ella. She must find a way to rescue her sister and break free from this terrifying, unholy ritual."
