Final Idea for Our Trailer

As a group we decided on a sypnosis. It is as follows:

Sisters Sarah and Cassie move into an old, isolated house in the country. There mother is dead and their father is extremley busy with is job in the city; having no time to spend with them. They are happy in their new home, until Sarah begins to hear strange noises coming from the basement.

Cassie makes friends with a strange little girl called Helen. Sarah starts to notice changes in Cassie, who is avoiding her, worried she will abuse her like Helen says. While in basement she comes across old photos from the 30s. She discovers who Helen really is. Sarah tells Cassie to stay away from Helen. Helen, angered, starts to release her fury on Sarah.