13 Ghosts is a 1960 American horror film, produced and directed by William Castle, written by Robb White, and starring Jo Morrow, Rosemary DeCamp, Martin Milner, Donald Woods, and Charles Herbert. The film also co-features experienced character actress Margaret Hamilton. 13 Ghosts was released in 1960 on a double bill with either 12 to the Moon, The Electronic Monster, or Battle in Outer Space, depending on the film market.
I suspect in a haunted house movie it is the ghosts and house that are the real stars. It is a shame that they had to include this plot and these characters.