<p><b>One murder mystery movie. Three Dahlias. And a whole cast of suspects...</b><br><br>Ex-child star Posy Starling is finally filming her dream role - Dahlia Lively in <i>The Lady Detective</i> movie. But things take a nightmare turn when a prop weapon is replaced with the real thing - with almost fatal consequences for her fellow Dahlia, Rosalind King. There''s something very wrong on the set of <i>The Lady Detective - </i>which means it''s time to call in Caro Hooper, so the three Dahlias can investigate.<br><br>In between filming scenes, signing autographs for locals, photoshoots in London, talk show appearances and jetting off to France for an impromptu party, the three Dahlias do what they do best - surrupticiously sleuth. And very soon the evidence starts to point towards one particular co-star...<br><br>But before they can prove it, another murder rocks the production. And this time, with a storm raging, the river flooded and the bridge washed out, there are no police to rely