A marriage arranged between their families brings police detective Su Yi and cardiothoracic surgeon Shen Duo into the same fortress called marriage.
She is a police officer who races to the front lines of life and death, weathered by hardship and all too familiar with human cruelty and farewells. He is a doctor who stands calmly at the operating table, saving lives with a scalpel in hand, yet remains cold and distant toward his wife.
Their marriage is a contract of convenience. They agree to treat each other with respect and keep out of each other's affairs. But as their paths cross again and again at crime scenes and in operating rooms, conflicts arise over duty and principles, and two hearts long guarded begin to draw closer despite themselves. Day after day, Su Yi falls for the occasional tenderness he lets slip, craving a warmth she knows is false. Shen Duo, too, quietly falls for her resilience and sincerity.
Just as their love begins to blossom, old grievances, the demands of their professions, and buried secrets arrive one after another. She risks her life for justice; he stands by his responsibility and a doctor's compassion. They find themselves on opposite sides, love tangled with pain, trust intertwined with suspicion. Their love after marriage was a heartbreaking trial from the very beginning. She gives everything to love him, and he begs her to stay, consumed by regret. But in the end, she never returns home in her police uniform. He is left alone in an empty house, spending the rest of his life tormented by remorse and longing.
