Bloodlust!

Two couples (Robert Reed, June Kenney, Joan Lora, and Eugene Persson) are on a boating trip when they come across an uncharted island. The four investigate and find themselves in the clutches of Dr. Albert Balleau (Wilton Graff), whose hobby is hunting both animals and humans… The group tries to escape only to be thwarted by Dr. Balleau and his henchmen.