Chloe has been planning her Big Day for as long as she can remember, and everything is set for the wedding of the year... ...until a wedding invite mix-up inadvertently sets her on a collision course with groom Dan's ex - the elusive first wife he's always been unsettlingly reticent to discuss. Nicola has worked long and hard to get where she is. She has independence, wonderful friends in glamorous Helen and loyal Laura, plus a fantastic relationship with the perfect guy. The last thing she needs in her life is the reappearance of her ex, and while discovering he's remarrying is a surprise, at the end of the day it's none of her business. Or is it? Increasingly threatened by Dan's first marriage overshadowing the build-up to her wedding, Chloe's curiosity gets the better of her, and she sets out to uncover the truth behind that failed relationship. But is she prepared for what she finds?