The sun is our source of life, but for sufferers of 'Leopard's Syndrome', it represents death. A rare genetic disease, the condition causes sufferers to be covered in thousands of freckle-like skin spots, which make them highly sensitive to the sun. Even brief exposure to daylight can cause skin cancer. This heartbreaking and beautifully realised doc follows five girls grappling with the disease and a life of terrible restrictions and early mortality.