Bright Deadly Summer — Barbara James

Not until they arrived at her family's villa at Starcombe by the Sea did Miranda realize that her husband was capable of genuine evil. She had met magnetic Laurence Wimbourne at a party in London, and just three weeks later they had married. Miranda was soon to discover a ruthless aspect of his life that he tried to keep hidden from her.

Then, tragedy struck one foggy summer dawn as their housekeeper was brutally murdered. Miranda, chilled by the feeling that Laurence was responsible, struggled desperately to quell the fear that she herself might be in mortal danger...