A group of hip friends gather at a Gothic castle owned by a wheelchair- bound older relative of one of the girls. One couple in the group, unbeknownst to the others, is smuggling heroin in some Chinese artifacts the protagonist has brought back from the Orient to give to her elderly relative. Meanwhile the deranged uncle of the protagonist, who supposedly killed the protagonist's mother (his own sister) and cut out her eyes, is wandering the catacombs spying on everyone. When one of the guests is murdered and her eyes subsequently disappear, suspicion naturally falls on the mad uncle. But is he being set up?

In her first onscreen adventure, journalist/photographer Mae Jordan (known to her readers as "Emanuelle") travels to Africa on assignment. Questions of her own racial and sexual identity come to a head as she observes the troubled marriage of her hosts, Ann and Gianni Danieli. Matters are complicated further when Emanuelle finds herself in affairs with both of them, after which she flees Africa, only to be persued by Gianni, who had earlier rejected her and ridiculed her advances.