A surprisingly good low budget horror film.
Dr Talbot (Philip Terry) is on bad terms with his alcoholic wife June (Coleen Grey). However, when he discovers from a mysterious African woman called Malla (Estelle Helmsley) that there is a secret to restoring youth then he suddenly reconciles with his wife and they head to Africa to discover Malla's secret (and make a fortune). After much stock footage, the Talbots end up at Malla's village. There they discover that Malla's secret is an elixir requires an awful ingredient: fluid from a just slain man's brain! Malla has her youth restored (now played by Kim Hamilton) and tells June that she can also have the elixir but she must choose the man who will be killed for her. She chooses her husband!
June manages to escape the village but discovers the effect of the elixir is short lived. She has no problem in killing again and again to return to her youth. When she arrives home she pretends she is her own niece and she has the hots younger men (some of whom she also kills) but the police are already hot on her trail of dead brain fluid drained victims...
This is a great film despite the overuse of stock footage in the African scenes which can drag the film down a bit. The Noir feel, though sometimes unexpected humour too, and the surprises make for an entertaining horror.