Forty-year-old Lin Hui lives in a strange marriage. The silence of her husband Zhang Jianguo was like a wall, trapping her in silence day after day, with no one paying attention and no one seeing her. Until Chen Yang, an eighteen-year-old boy next door, appeared. He was like a beam of light, shining unexpectedly into her gloomy life. The two people living across the wall gradually developed feelings that they shouldn't have while looking at each other on the balcony and in their daily greetings. On one side is the loneliness that has been suppressed for many years, on the other side is the fresh and warm warmth; on the other side is the shackles of morality, and on the other side is the temptation of the heart - Lin Hui repeatedly struggles in this misplaced love, indulges in and blames herself, approaches and escapes.
However, no matter how warm the light inside the wall is, it cannot penetrate the high wall of the world. When the secret was revealed, and when the lives of the three parties collapsed, they realized that some heartbeats could only be kept in their lips and hidden by the years. This is a story about loneliness, longing and redemption. It asks: When a person has lived in darkness for a long time and encounters a beam of light by chance, should he reach out and grab it, or should he turn around and avoid it? And the answer is hidden in time and where everyone belongs.
