We grew up watching it in the eighties... a family film with kids (maybe they were orphans?) but it seems like the kids had made a silly haunted house to scare off some adults. In that scene the oldest has long dress up witch finger nails that she motions for others to come inside. I also remember one scene where the little girl runs off in the night and the rest of the kids sing "oh my Darling" to find her on the swings at the park. Maybe her name was Zoe? That's all I've got though!! I'm dying to remember!