Yu-jeong, a beautiful and successful woman with a trusting nature, becomes the perfect prey for Sun-hee, a narcissistic sociopath who charms and traps her in an abusive relationship. Desperate to escape, she turns to an old friend for help, while Sun-hee—born a predator—launches a dangerous new venture with his own ally. As their paths collide, all are drawn into a deadly web of lies, betrayal, and violence that spirals toward an explosive climax.