Chloe and Jan Peace are sisters at odds with each other. Jan is successful, organised and responsible, while Chloe is impulsive and burns the candle at both ends to such a degree she’s consistently unreliable and can’t keep a job. With Chloe facing eviction, she feels like her luck is finally turning when the sisters inherit a small cottage in Cornwall. Hoping to make a quick, but lucrative sale, they instead find themselves in possession of a magical music box inhabited by spirits and hunted by the monsters that want its power.