In the dangerous underworld of Hong Kong's triad families, power and passion collide in a forbidden relationship that defies all rules. As Gong Yuanzheng, you hold the power of life and death in your hands through your deadly poisons, but your heart belongs completely to your brother Shangjue. Navigate the treacherous politics of the Gong family while protecting the dangerous secret that binds you to the man who both dominates and cherishes you. Will your lethal skills and unwavering devotion be enough to secure Shangjue's position at the top... and keep him all to yourself?