Across the world huge audiences enjoy watershows featuring killer whales. Seemingly effortlessly the trainers make the colossal black and white whales fly through the air with grace. But the killer whale remains a dangerous predator. In Sea World, Tilikum has already killed three trainers. In the wild, these animals are not agressive or dangerous to humans, so what got into this 'tamed' creature? This touching film is both a psychological thriller and an emotional plea against locking up animals for the purpose of entertainment.