From Library Journal:
This 1965 novel is not among du Maurier's better-known works; indeed, it is not even mentioned in her obituary in the London Times, and The New Yorker called it "extraordinarily dull." It takes place in the fictional university town of Ruffano, Italy; tour guide Armino Fabbio has returned to his childhood home, now alcoholic and homeless, after the murder of an old family servant. There he finds his brother Aldo, supposedly killed during the war; Aldo in turn believed Armino and their mother had also been killed. Aldo, insane and vicious, undertakes a play about the founder of Ruffano, Duke Claudio, against a backdrop of political unrest and town and gown conflicts. It is a dark, harsh tale of good and evil, with family secrets unearthed amidst incest, murder, rape.

My mom bought this at Thrift on Kent (where I price books - I don't price Book Crossings ones but put them in little free libraries instead. Someone else priced this one!) and I'll release it in Waterloo, where I live.

A pretty fun book though I guessed the plot twists early and I found the ending a bit anticlimactic.