Heather Prendergast's final exams are just around the corner and then - God and Aunt Elizabeth willing - she will be but a hop, a slip and a jump from fulfilling a lifeheld ambition of joining the Metropolitan Police. But a pear-shaped spanner is tossed into the works when Merton police college is put into special measures and a new principal is parachuted in.

Heather's prospects look bleak until, out of the blue, Taylor Swift comes galloping to her rescue

Well, needless to say, this being Heather Prendergast, mayhem ensues until she emerges smelling of roses and champagne ready to resume her slide up the slithery ladder of ambition to her ultimate goal of becoming Prendergast of The Yard