When the estranged daughter of Scotland's premier art dealer goes missing, Private Investigator Hanlon is hired to find out where Aurora is. But what she thinks will be a relatively straightforward job soon turns dangerous. The missing girl has a troubled past, but what made Aurora suddenly pack her bags and disappear?
When Hanlon is suspended from the force for assaulting a suspect, she escapes to the remote Scottish island of Jura, home to the mysterious Corryvreckan whirlpool. But wherever Hanlon goes, violence is sure to follow. As soon as she checks into The Mackinnon Arms, Hanlon senses something isn't quite right about the staff at her home for the week. Sure enough, within days of arriving, the body of a member of staff is found floating in the sea. While police believe she was claimed by the local whirlpool, Hanlon isn't so sure.