Goid concept, extremely poorly executed. Too many inconsistencies to fathom. A hasty implausible wrap-up in the end.
Things that drove me nuts:
1. They are all aging, why doesn't their hair and nails grow?
2. Why would a Pharmaceutical Company get away with murder?
3. Why would the man with the camera sit on the rocky ridge with a camera to monitor the folks on the beach? They couldn't afford spy cameras?
4. Terrible acting.