The Substance Review

Elisabeth Sparkle, renowned for an aerobics show, faces a devastating blow on her 50th birthday as her boss fires her. Amid her distress, a laboratory offers her The Substance, you can generate another you: younger, more beautiful, more perfect. You just have to share time -- one week for one, one week for the other. A perfect balance of seven days each... Easy right? If you respect the balance... What could possibly go wrong?