While walking on an isolated track in the windswept Wimmera, rock-climber Skye discovers the body of a young woman. The body has injuries that suggest a rock-climbing accident, but it's been found more than 5km from the nearest cliffs at Mount Arapiles.

Police ask Skye to help them navigate the perilous world of rock climbing as they try to unravel what happened. Skye is secretly thrilled to be part of the investigation, but as it becomes clear that a killer is on the loose, all thrill turns to fear. In the isolated crags of the mountain, stark beauty can conceal horrific truths.