A realistic look at the horrors of the slave trade, told entirely through the voice of a dead African slave whose spirit haunts the ocean route.

Martinique late nineteenth century. Abandoning the plantation where they work, Hermansia and Tiquitaque, a couple of musicians, settled in Saint-Pierre. But they quickly disillusioned: career took off in a little town that is only interested in Western music. Begins for the couple a long drift during which they will learn these new sounds, these new music from elsewhere.