Watch The Book of Fish full movie online Movies123. Watch The Book of Fish 123movies online for free. The Book of Fish 123Movies: In 1801, after a new king ascended the throne, a scholar Jeong Yak-jeon who served the late king is exiled to Heuk-san Island. There he meets Chang-dae, a young fisherman who is a huge admirer of Confucianism and has a wide knowledge about the sea.