A medical accident poisons the relationship between doctors and patients, and a fight for justice brings deadly threats instead. With nowhere else to turn, Li Ming and his wife sneak into a hospital to investigate, only to stumble upon an even deeper darkness. Behind the secret affair between a taciturn genius doctor and a stunning nurse lies a shocking conspiracy, with secrets relayed through the patterns of ocean waves. When the husband pretends to be disabled and rents a room opposite the doctor’s, a fatal flirtation with the nurse exposes his identity. When a fugitive enters a secret cave on a cliff, shifting a boulder is enough to rewrite a coded message at sea. In a race against death, they stake their lives to let sunlight pierce the bloody trade beneath the tides. And those seductive eyes that see through lies have been waiting on the crest of the waves for a long time...