Alan Tarlton

An American reporter in Japan is sent to interview an eccentric Japanese scientist working on bizarre experiments in his mountain laboratory. When the doctor realizes that the hapless correspondent is the perfect subject for his next experiment, he drugs the unfortunate man and injects him with a serum that gradually transforms him into a hideous, two-headed monster. (imdb)

Inspector Paul Derek is based in Nairobi, Kenya but travels throughout the colonial territory solving crimes. The nature of the bad behavior is often unique to the African locale.

British settlers travel to Masai country in Kenya. (imdb)

The wife of the North Kenya District Commissioner joins him in Africa and encounters trouble with the natives.

Railway construction in Africa faces challenges from man-eating lions. A surveyor and doctor develop romance amidst hardships endured by white settlers braving authentic African landscapes at turn of 20th century.