You can take it or leave it but I do believe a house can be cursed.
A friend of mine had a home and this guy she met at a Catholic College wanted her house. She said that she did not want to sell the house to him or anyone because she really liked the house. This made him angry. He was involved into some strange things she said at the time she did not know what he was involved in.....but when someone did something bad to him he would say that person is going to have a broken leg or something in seven days and sure enough it happened just like he had said. This began to really trouble her and after awhile they broke off their friendship. This is a very long story but I will try to cut to the chase. He said that if she did not let him buy the house he was going to put a curse on it. And he did. Many unexplained things started to happen and neighbors began complaining about the house and things went from bad to worse. She went to the local Catholic Church and talke to the priest about all the unexplained activity in the house and what happened to people when people stayed in the house while they were on holiday....bazzar stuff. Anywhoo...they said they would have it blessed. In the mean time a young priest from that church decided to go to the house. Before he had a chance to knock on the door the priest was picked up by an unseen force and thrown across the street into the neighbor's yard. Shaken he went back the the parish and told the head priest what had happened and said they need to bring in the "big guns"......my friend told me they brought in a priest from Italy....and he did an excorcism on the house. Everything was fine with the house after that.