Lan Xin, a psychology master's graduate, moves to this unfamiliar city for love and opens a counseling practice called The Turn in the Mind.
But two years earlier, a couple had died together in this very room, leaving the space filled with a strange substance known as pheromones. Around Lan Xin and The Turn in the Mind, and among the many people who come for counseling or to pour out their romantic troubles, one tangled tale of love and hate after another unfolds, sparked, stirred, diffused, ignited, intensified, and finally unleashed by pheromones. There is sweetness and bitterness, joy and sorrow, heartache and anger...