A Promise to Dishonour

When Ashlie's brother is sent to Brazil on a work assignment, he asks her to move in with his new wife, Lynette. After living together for a while, Ashlie notices Lynette is coming home late and acting like she's hiding something. Ashlie's suspicions are confirmed when Lynette lets her know she's going on a trip alone with her boss, Chase. Protective of her brother, Ashlie storms over to Chase's home to stop him from bringing Lynette on the trip. She's caught off guard, however, when the notorious womanizer demands that she take Lynette's place! Source: Harlequin