When Detective George Donovan and his eccentric partner, Detective Andi Hayes need a break from their gruesome job, a hike seems like just the thing.

Unfortunately, the job catches up with them, when they find three dead men in a lake.

When the promising clues dry up, George and Andi turn once more to Andi's geschenk – but this time, things aren't so easy. Andi's mysterious talents are growing stronger, making it harder to block out the barrage of information and taking a toll on his physical and mental health. The cryptic clues his tiny informants offer are even more bizarre than the case itself. And the more they discover about the victims, the more uncomfortable the investigation becomes.

Torn between catching a killer and serving justice, between George's career and Andi's sanity, the detectives have their work cut out for them if they're going to solve theses murders.