Overview
A marine biologist and a government agent investigate mysterious deaths and rumors of a sea monster in a secluded ocean cove, and find themselves involved with a marine biology professor conducting secretive experiments, international spies trying to steal his secrets, a radioactive light on the sea bottom, and the malevolent thing which guards it.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 48 | April 11, 1987 (79) | |
 | 29 | December 8, 1976 (50) | |
 | 53 | April 14, 1974 (71) | |
 | 40 | August 3, 1968 (52) | |
 | 35 | December 22, 2006 (86) | |
| 44 | September 7, 1988 (77) | |
 | 30 | June 7, 2017 (91) | |
 | 47 | October 10, 1998 (90) | |
| - | - | |
| 32 | April 11, 2008 (84) |