Attorney and law professor Marla Cwitowitz is dying for some excitement in her life. So when she and her private investigator boyfriend Al Giraud stumble onto the biggest case of their careers, she jumps at the chance to moonlight as a detective. According to the evening news, real estate agent Laurie Martin is missing and possibly dead. Marla and Al happen to have seen her having dinner with an attractive man several days before. The man is Steve Mallard, husband, father, and prime suspect in Laurie's disappearance. Steve's level-headed wife, Vicki, hires Al and Marla to prove her husband's guilt or innocence. Believing that there's more to the story than meets the eye, Marla and Al quickly find themselves on a cross-country manhunt trailing a chillingly remorseless criminal to prove Mallard's innocence. With All or Nothing, bestselling author Elizabeth Adler continues in the acclaimed tradition of her previous novels Sooner or Later and Now or Never, which Library Journal called a "top-notch romantic thriller".