As a private investigator employed by marriage-minded women, Charlotte Arkendale has made a lucrative career out of delving into the lives of prospective grooms. But one of her clients has recently been murdered, and Charlotte herself has begun to receive threats. Now, she doesn't know what to make of the stranger who appears on her doorstep to apply for the position of her new man-of-affairs. Baxter St. Ives claims to be a respectable gentleman, but something about his arresting presence and the unrelenting determination burning in his eyes makes Charlotte wary. With the proper man by her side, she's certain she can catch her client's murderer. But is the enigmatic St. Ives Mr. Right or Mr. Wrong?To St. Ives, masquerading as a man-of-affairs to find out if Charlotte's a murderer is maddening enough, but discovering himself at the mercy of a highly illogical passion for her throws his life into chaos. So he decides to conduct an experiment into the risky alchemy of desire. But even as he sets out to seduce Charlotte, the real killer is on the loose in London, plotting to part the lovers...or see them joined together forever in death.