In China, a new industry has emerged devoted to helping couples stay married in the face of infidelity. Wang Zhenxi is part of this growing profession, a “mistress dispeller” who is hired to maintain the bounds of marriage - and break up affairs - by any means necessary. "Mistress Dispeller" follows a real, unfolding case of infidelity as Teacher Wang attempts to bring a couple back from the edge of crisis, offering strikingly intimate access to private lives usually hidden behind closed doors. Their story shifts our sympathies between husband, wife and mistress to explore the ways emotion, pragmatism and cultural norms collide to shape romantic relationships in contemporary China.