Voices in the Wardrobe — Marlys Millhiser

Detoxing turns deadly when Hollywood agent Charlie Greene vows to prove that her troubled friend is no killer 

Agreeing to accompany her old friend Maggie to San Diego's exclusive Marina del Sol spa is a no-brainer for harried Hollywood agent and single mom Charlie Greene. What could be bad about chilling in the spa's purifying, gently eddying waters? Or being wrapped in seaweed and pampered with a granite body scrub and deep-tissue massage? Plenty, it turns out, when, after a lecture on orgasm after menopause, the camera-ready motivational speaker, Dr. Judy Judd, is found dead in one of the spa's pools.
 
Maggie becomes the prime suspect when it's discovered that she was the last person to see the celebrity doctor alive. Charlie can barely get a coherent word out of her -- especially with Maggie doped up on a dizzying cocktail of meds for her depression and wild mood swings. Then another murder rocks the spa. Joining forces with her ex-boyfriend, studly movie-star-turned-director Mitch Hilsten, Charlie fights to clear Maggie's name. But she may not be able to stop the killer, who's loose among the pampered detoxers and preparing for one final cleanse.