Anthony and Dolores Montelli, along with their four children, move into their dream house in Amityville and are immediately plagued by a string of paranormal experiences. When the abusive Anthony wrongly places the blame on the children, Dolores recruits a local Catholic priest to exorcise the house.

A cop suspects his wife's infidelity, only to become the prime suspect when she's murdered. A criminal psychologist believes the real killer is a presumed-dead serial killer, as more murders unfold.

A reporter and her cameraman connect a surviving Jonestown leader and a TV exec's missing son to a drug war where jungle installations are being massacred by an army of natives and a skilled white assassin.

A group of environmentalists arrives at a faraway tropical delta where toxic waste is being dumped. However the water also hides a giant crocodile. The corrupt local officials don't help much either.

The Caribbean swamps which is to be made into a holiday resort is terrorized again by a second monstrous crocodile which is killing off anyone unfortunate to be on the water.

A couple is terrorized in their new house haunted by the vengeful ghost of the woman's former husband who possesses her young son.