THE MURDER ROOM by P.D. James

At a small family run museum outside of London, a grisly murder is committed, one that appears to be a copycat. When Dr. Neville is burned to death in his vintage Jag, his brother and sister co-operate with the police to try to figure out who could possibly wish their psychologist brother any harm. With a dash of romance on the side between the poet-cum-detective and a literature professor at Cambridge, this mystery is a satisfying romp.