On their way to perform in Guam, nightclub performers Duke Mitchell and Sammy Petrillo find themselves stranded on a seemingly treacherous island, known by the natives as "Kola Kola". The natives are quite friendly, especially Nona, the tribal chief's daughter, who tries to help the two get off the island. Though Paradise has been found, for the time being, the duo soon discovers that a mad scientist named Dr. Zabor (Bela Lugosi), lives on the other side of the island. Seeing a chance to get help, the two visit the strange doctor. Tension mounts as Duke falls in love with Nona. Seeing Duke as a threat, a jealous Dr. Zabor plans to literally make a monkey out of Duke, for he too loves Nona. Sammy tries to help his pal, with unexpected results.
