The story of "The Silence of the Tides" begins with the advancement of a key project in a coastal city. Under the surface calm and prosperity, the secret and complex connections between former classmates are re-involved. Several characters in different positions were once again involved in the same invisible network because of an old piece of information and an unsaid past event. Some people are trying to maintain the situation, some are trying to withdraw, and some are waiting for an opportunity in silence. The city is still moving forward, the tide rises and falls day and night, and the trust, temptation, concealment and containment between people are also unfolding layer by layer quietly.