Rampage

In this South Seas adventure, an internationally renowned big-game hunter is engaged by a German zoo to find and capture a rare Malaysian cat that is half-tiger and half-leopard. He is accompanied by another hunter and his young mistress. The other hunter is much older and subject to bouts of paranoia. While in the jungle, his behavior becomes increasingly erratic and accuses his mistress and the hero of having an affair. While it is true that they are mutually attracted, they have not acted upon their feelings. After catching the elusive cat, they return to Germany where the mistress finally tells her older lover about her feelings. He reacts by freeing the great cat so it will kill the younger man. Instead the "tiggoard" kills everyone but the hero. The old hunter then ends up trying to kill the would be lovers with his gun. Fortunately the concealed kitty leaps out and kills him first. ~ Sandra Brennan, All Movie Guide