A scandalous widow in the 19th century buys a house in order to redecorate it and write a book about the process. By the way, the house is haunted and a very sweet scientist with a loving family wants to experiment and solve the mystery.
BTW, Professor Samuel Moore is the most dreamiest book boyfriend ever. He's a ray of light and my dream date.
I flat out LOVED this book. Diana Biller is definitely on my authors to follow list.
See also the novels of Simone St. James for this blend of spookiness and romance.