We are promised opalescent waters at the start of this drama, but all we actually get is a muddied hybrid of half a dozen stories with a group stranded on a remote Florida Key from where, in my humble opinion, they ought never to escape. “Ramsey” (Ray Middleton) and his wife “Leslie” (Gloria Dickson) are off chasing the marlin when their boat runs aground and the propeller gets lost. Together with...