Steph Klasson is gone. One moment she's walking to the campground showers; the next, she's disappeared without a trace.

In sunny coastal Perth, Steph and husband Hugh appear untouchable - wealthy, beautiful, with a family others envy. But when Steph goes missing on what should be a relaxing camping trip in Bremer Bay, the glossy surface of their perfect marriage fractures.

Has she run from a life that everyone envies, or is someone making sure she can never return?

With his wife missing, Hugh's panic is convincing - yet, so are the whispers about his temper, his secrets and the cracks in his calm behaviour which Steph hid from even her closest friends.

Steph's best friend, Sam, refuses to believe she simply walked away. But as she digs into Steph's final days, she uncovers a tangle of lies that force her to question everything she thought she knew about her friend - and about her own marriage.

With each revelation, danger creeps closer and Sam must decide if it's worth risking everything to save Steph. Because there's only one person who knows what really happened in the dark at Bremer Bay - and they'll do anything to keep it buried.