When freelance writer Jaine Austen is surprised with an über-luxe spa getaway, she and her feline pal Prozac are eager to hit the road and bask in a week of pampering and pedicures. But what she gets is a California fat farm in disguise, complete with celery-juice cocktails, humiliating weigh-ins, and a zero-tolerance position on carbs.

Among her bulge-battling companions is Mallory Francis, a B-list movie star with a knack for making frenemies. When she's found strangled during a seaweed wrap gone awry, Jaine is hard-pressed to think of anyone who couldn't have done it. While the suspects mount faster than her hunger pangs, Jaine's search for truth, justice and contraband calories leads her straight to a cold-blooded killer—where murder may be on the menu once again . . .