Break and enter

the long version

Peter Scattergood is a Philadelphia Assistant District Attorney, a relentless and clever prosecutor who has just landed the biggest case of his career--a double homicide, involving the mayor's nephew and his mistress. This is not the best time for his wife to walk out on their crumbling marriage and to disappear. As Peter tries to find his wife, and to build his case, he is drawn into an affair with an alluring stranger named Cassandra, a woman whose greatest skill is arousing suspicion. -- Publisher's website.