Plantation physician Afonso assigned to treat enslaved servants with fatal homesickness, Banzo, on an African island. Despite medical efforts, he struggles to heal their spirits on isolated hill, confronting existential challenge.

1907. Afonso starts life anew on a tropical island off the African coast, as a plantation physician. He is tasked with treating servants "infected" by Banzo, a profound homesickness fatal to many slaves who succumb to starvation or take their own lives. To prevent spreading, the group is sent to a secluded hill encircled by forest. Afonso tries to heal them, but understanding their spirits is a challenge stronger than any medical intervention.