Meet Charley Deacon. She's failing out of uni, being near the sea makes her inexplicably ill, and now her sister has gone missing in suspicious circumstances. Her only hope of finding her may lie with an impossibly old woman who lives - you've guessed it - by the sea. Welcome to Inver Aora, a tiny settlement on the coast of New Zealand's South Island. It has a holiday park, a woman who may or may not be a witch, and not a lot else...