A gang of jewel thieves board an empty luxury liner in the South Seas to find that the crew and passengers have been killed by a monster that kills its victims and sucks the water from their bodies that looks like a mix of a giant squid and the monster from “Aliens”.

Marcus Burnett is a hen-pecked family man. Mike Lowry is a foot-loose and fancy free ladies’ man. Both are Miami policemen, and both have 72 hours to reclaim a consignment of drugs stolen from under their station’s nose. To complicate matters, in order to get the assistance of the sole witness to a murder, they have to pretend to be each other.