The Couples Retreat by Mercedes Mercier

A destination thriller from Mercedes Mercier, set on Kangaroo Island. Three wealthy couples, one shocking murder, and a storm that means no-one is leaving.

There's nothing more dangerous than someone who remembers who you used to be.

At a secluded beachfront mansion on Kangaroo Island, three wealthy couples gather for a weekend of partying and luxury indulgence. Beneath the glitter, old rivalries and explosive secrets are quietly festering between friends who go back too far. When they wake to a shocking murder scene, fear gives way to suspicion fast. Ferry services are suspended for the storm. The survivors, and the killer, are trapped on the island together.

Rookie police officer Emily Quinn is thrust into the biggest case of her fledgling career and quickly discovers the locals are mistrustful of outsiders. When her dangerous ex-boyfriend tracks her down, Quinn's past and present collide, threatening her new life and the investigation of the most gruesome crime in the island's history.

A compulsive thriller set in one of Australia's most beautiful locations, where privilege turns out to be no protection at all and no-one is quite as perfect as they seem.