One person's unrequited love, from observing to being the only one who has the heartbeat, unintentionally learned that her death was not accidental, Shen Chang teamed up with the police to avenge her.
Everything returned to calm. Shen Chang paid a lot for this secret love, and what he got... Was his heartbeat for this secret love.
Secret love is a person's heartbeat.
Demining: The heroine is killed, Shen Chang takes revenge, the two people have little contact, mixed with the story of solving the case.
Intention: Obsession comes to an end and the rest of life is barren, exploring the weightlessness of human spirit under love and loss.