A wealthy woman funds an underwater expedition to explore for marine life, but what she doesn't know is that her "colleagues" have other intentions.
Ralph Bellamy
as McCreary
Fay Wray
as Diana
Frederick Vogeding
as Von Boulton, a.k.a. Schlemmer
Esther Howard
as Lily
Paul Page
as Jackson
Trevor Bland
as Waldridge
William J. Kelly
as Dr. Chapman
Richard Alexander
as Sailor (uncredited)
Kenneth MacDonald
as Sailor (uncredited)
Paul McVey
as Shipboard Party Guest (uncredited)
Florence Wix
as Banquet Guest (uncredited)
