Eighteen-year-old library assistant Jan Christopher's life is to change on a rainy Friday evening in July 1971, when her legal guardian and uncle, DCI Toby Christopher, gives her a lift home after work. Driving the car, is her uncle's new Detective Constable, Laurie Walker - and it is love at first sight for the young couple.
But romance is soon to take a back seat when a baby boy is taken from his pram, a naked man is scaring young ladies in nearby Epping Forest, and an elderly lady is found, brutally murdered...
Are the events related? How will they affect the staff and public of the local library where Jan works - and will a blossoming romance survive a police investigation into murder?