Can an inspirational card from a secret sender really help change your life? For Abby, Kat, Patti and Tessa, it seems to hold that extraordinary quality. The card instructs each woman to hold it in their possession for six months before sending it on, with an invitation to meet the sender two years from the date of its inception.
From Edinburgh to Glasgow, York to Cambridge, the card is sent on a journey to impart its magic.
But who is the sender and what was their motive? And why were they the chosen ones?