The fascinating psychological thriller “The Stranger’s Wife” by Anna-Lou Weatherley centers on two remarkably different women, Beth and Cath. Beth: She’s comfortable and in a relationship with a man who shows her the kind of love her cold, uncaring spouse does not. Cath: On the other hand, Cath is suffering from a severely abusive spouse who would prefer for her to die than leave him, and she is living on hand-to-mouth.