Seven husbands of Evelyn Hugo I believe is loosely woven around the 8 marriages and 7 husbands of Elizabeth Taylor.
It speaks about the same-sex relationships which were perhaps hidden in the closet at the time the story was being told. It boldly discusses the travails of a woman in the Hollywood behind the scenes. The beauty of Evelyn makes the men look at her lustily but she has a marriage where she gets beaten up by her husband. Harry the good old friend is always dependable.
Why does she ask a young unknown journalist to write her biography? The mystery is resolved at the end. The style of writing is lucid. The book was a little lengthy. A. slightly smaller number of pages would have made it crisper and easy to read.