Dakota Finch never really recovered from the day her best friend was murdered. Dakota and Flora were best friends - and Dakota has never confessed her own dark secret about what she did that day. Years later, Dakota has become a detective, hiding her broken heart behind a rock-hard shell. When her latest misdemeanour sees her re-assigned back to her small home town, she can't help but think it could be her chance to finally catch Flora's killer - a man who's only ever be known as 'the Sugar Man'. When another body is found, stirring up memories of her last summer with Flora, Dakota realises the truth may be hiding in the secretive Amish-like cult based in the nearby woodland. But this is a killer who has stayed hidden for decades, and they won't hesitate to kill again to protect their darkest secret.