A century after a disaster floods a quarry in North Wales, a young woman inherits a house nearby. A weekend with her boyfriend in her dream cottage turns into a nightmare at the gateway to the Celtic Otherworld: a place where the creatures of ancient Celtic Myth walk the land.

A century after a disaster floods a quarry in North Wales, a young woman inherits a house nearby. A weekend with her boyfriend in her dream cottage turns into a nightmare at the gateway to the Celtic Otherworld: a place where the creatures of ancient Celtic Myth walk the land.

A century after a disaster floods a quarry in North Wales, a young woman inherits a house nearby. A weekend with her boyfriend in her dream cottage turns into a nightmare at the gateway to the Celtic Otherworld: a place where the creatures of ancient Celtic Myth walk the land.