Inside a Chinese prison two inmates form a friendship and face the difficulty of life on the inside.

Identical twins are separated at birth, one becoming a streetwise mechanic, and the other an acclaimed classical concert conductor. Finally meeting in adulthood, they each become mistaken for the other and entangled in each other’s world.

Ching escapes from prison to see his young son, who he has been put in an orphanage. And that puts him in great danger.