Scottish anaesthetist Mia Beaton arrives in New Zealand for sister Cassy's wedding, only to find Cassy has died. Mia determines to find her sister's killer among the unusual townsfolk.

Mia questions Teddy and Harry, with conflicting results. An arson attempt fuels Mia's suspicions that she is not welcome. The realisation that she hardly knew Cassy draws Mia closer to Ewan.