Newlywed Jeannie struggles to adjust to her new life in a Scottish fishing town, until her mother-in-law, Maggie, insists she join the women gutting fish at the harbour, drawing her into a new community.

As a rural village prepares for its final harvest festival as a luxury building development is greenlit, an ancient threat awakens and Julian must come face to face with a haunting piece of folklore.

When Edie is caught kissing a girl at a church dance, it becomes a race to find her mother before her monstrous secret is revealed.