Horror movie plot ideas

Idea 1:
As a group we had decided that our film is going to be a paranormal/psychological film because we thought that this genre would be more effective in scaring the audience as more people can relate to paranormal incidence than someone walking around with a mask on or some outer space invasion. We based our film around a revenge story. Our story was going to start at a graveyard where the funeral of a boy (Vishal)were taking place. The mother(me), the Father(Hamza) and the daughter (Annika) were present with a few other family members. The plot is that the father had murdered the son and when the father starts to abuse the mother the sons soul returns to take revenge on the father. The father however dies at the end and the film ends at the grave of the father.

Idea 2:
As a group we had decided to change the plot. Out new plot is to do with a family that moves into a new house. The house itself is not haunted but a doll, found in the house by the youngest daughter, is haunted. The daughter gets possessed by the spirit inside the doll. The doll is found in an empty room which was hard to open in comparison to the rest of the rooms. All the rooms except that room were clean. That room was full of dust to the extent that it was difficult to open the door. We kept the cast in this plot the same as the first plot. The reason why the youngest daughter gets possessed is because she was the first one to touch the doll. The haunting however does not start straight away, it gradually builds up to a dangerous level where everyone dies and the family is destroyed.
The film ends at a graveyard where all the family is buried.