Scarlet Nights by Jude Deveraux

Engaged to the charming and seductive Greg Anders, Sara Shaw is eagerly anticipating her wedding in Edilean, Virginia. But just three weeks before the big day, Greg receives a mysterious phone call and disappears without a trace. Soon after, a man named Mike Newland claims to be the brother of Sara’s best friend and moves into her apartment. As Sara grapples with her emotions and the unraveling mystery, she discovers that Mike is an undercover detective investigating her fiancé’s criminal connections. Torn between betrayal and trust, Sara must navigate the complexities of love, deception, and the pursuit of justice.