Hannay goes to southern Africa to see the curmudgeonly Desmond Leigh. He is married to the younger Barbara Leigh (Cathryn Harrison) and they run a general store.
Obviously the flirty and pretty Barbara has more than a few admirers, especially as she showers in daylight.
Hannay's purpose of the visit with Desmond never reaches a conclusion. He has been murdered and Meredith Baxter stands trial for his murder. He is found guilty.
Only Barbara Leigh was having an affair with Henry Milner, a foreman in the plantation. Now they can be open with their relationship.
Wily Milner has a sense for the real purpose of Hannay's visit. It was o being something either money or something else valuable.
Milner's notion was correct. Hannay was meant to hand some diamonds over but now will only do so when Barbara has children. Milner is not prepared to wait and hatches a plan.
It was really a bizarre story with duels, a police inspector who seems to do no legwork. It was all a bit daft but the cast sold it well with Harrison as the femme fatale.