In 19th Century France, a married silkworm smuggler named Herve Joncour travels to Japan to collect his illegal cargo. During his trip, he falls deeply in love with a stunning Japanese woman, a baron's concubine, despite their language barrier. They exchange passionate letters until war breaks out, but their love remains strong. Meanwhile, Herve's wife Helene grows suspicious of his infidelity.

Silk
A French merchant, formerly involved in silkworm smuggling, embarks on a perilous journey to Japan to obtain silkworms for his town's textile industry after a deadly disease devastates their African supply, and he becomes captivated by Japanese culture.