In the heart of the Golden Triangle, where the Mekong River meanders, silence is a survival instinct.
A Wu is a sailor on the cargo ship "Shun An". For five years, he made a living on the edge of a knife by transporting unidentified cargo. From opium pressed into bricks to methamphetamine hidden in milk powder cans, from girls tied in cabins to munitions glowing with cold light, he has seen all the filth and sin on this river, but always chooses to shut up - silence is the only way he can protect his wife and daughter far away in Yunnan and save enough money to save his daughter.
In the thick fog of Chiang Saen Port, he accidentally looked at a silent girl. She was once a teacher in a mountain village, but now she has become a prisoner of the drug lord "Kun Ye", covering up the unquenched glimmer of light with numb calmness. This silent encounter, like a stone dropped into Awu's stagnant life, made him shake: in this land shrouded by drugs, gunfire and despair, is silence a salvation or a deeper sinking?
