Kimberly Akimbo review – hilarious musical about a sexagenarian teen is one for the ages

Hampstead theatre, London Maria Friedman plays a 15-year-old with a rare ageing condition in a heartfelt and funny show that manages to sustain its sweetnessIt’s a bizarre concept for a musical: a girl with a rare condition that causes her to age four times faster than her peers, in a family so dysfunctional that she’s the normal one. Meanwhile, the…