Billy Towers

Four co-workers make a bet to see who can be the first to bed an attractive new hire. Flirting gives way to backstabbing and friends become enemies as they compete for the object of their affection. Before it's all over reputations are destroyed, punches are thrown, and someone goes to jail.

A reality TV crew charter a boat to an island for filming, one which the boat's captain had been to before and attacked by giant shrews, more than fifty years earlier.