The moment Ethel Proudlock comes into the story, one has a vision of Bette Davis shooting a man in the back in a film based on Somerset Maugham’s The Letter. Somerset Maugham is one of the characters in Tan Twan Eng’s new novel The House of Doors which is set in his home terrain of Malaya — in this case Penang, rather than the mysterious slopes and hazy greens of The Garden of Evening Mists, Eng’s Booker shortlisted novel.