A skeptical college professor discovers that his wife has been practicing magic for years. Like the learned, rational fellow he is, he forces her to destroy all her magical charms and protective devices, and stop that foolishness. He isn't put off by her insistence that his professional rivals are working magic against him, and her protections are necessary to his career and life.

Ellen Wheeler, a rich widow, is recovering from a nervous breakdown. One day, while staring out the window, she witnesses a murder. But does anybody believe her?

They were told to never go into the water. Now the sea will rise in a tide of blood.

The medical Dr. Owen leads a three-men SWAT team inside the sealed off building to get blood sample from the girl Medeiros to develop an antidote. They are attacked by the zombie-like creatures and Dr. Owen locks a zombie inside a room using a crucifix. He discloses that the patient zero was possessed by the evil and the Vatican sent him to save mankind. Further, they will only leave the building under his voice command. Meanwhile, three teenagers follow a fireman and a man that breaks into the building through the sewage system to rescue his colleague and daughter respectively and they are trapped inside. They are lured and release the evil creature that was locked by Dr. Owen in a room. Out of the blue, the lead team meets the journalist Ângela Vidal hidden inside the building.