The Secret of the Purple Reef 1960

Synopsis:

When a man mysteriously vanishes on his ship in the Caribbean, his two brothers journey there to investigate his disappearance.

Directed by: William Witney
Written by: Harold Yablonsky
Runtime: 81 minutes
Cast:
Jeff Richards
Jeff Richards
Mark Christopher 
Richard Chamberlain
Richard Chamberlain
Dean Christopher 
Margia Dean
Margia Dean
Rue Amboy 
Peter Falk
Peter Falk
Tom Weber