The Brink (2006)

A device that allows users to talk to the dead leads to a nightmare for some college students in this spine-tingler. When Megan finds blueprints for a machine drawn by Thomas Edison shortly before his death, she recruits some of her friends to build it in a run-down old house. But the house has a bloody history, and when the students complete their invention, it connects them with the evil that's been lying dormant for years.