An American insurance investigator is sent to Rhodesia to investigate the mysterious death of a diamond broker who drowned whilst diving off the coast. The broker was insured for $1 million so the insurers are suspicious.

Top Cast

Dana AndrewsScott Walters

Jeanne CrainMarian Taylor

David FarrarPerry Henderson / Arthur Henderson

Patrick BarrSupt. Roberts

George CoulourisCapt. Malburn

Charles GoldnerMartell

Wilfrid Hyde-WhitePitt

Heather ThatcherLady on the Niagara