Eureka

S01E02 Many Happy Returns

The people of Eureka gather for the funeral of Susan Perkins, only to discover that she is very much alive. At the same time, the Sheriff relocates to an underground bunker, which turns out to be a high-tech "smart house" managed by an AI named S.A.R.A.H. He starts looking into a mysterious "ghost" that has been haunting the town.